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All questions of Environmental Pollution for BPSC (Bihar) Exam
Consider the following statements: 1. Water pollution by organic wastes is measured in terms of Biochemical Oxygen Demand (BOD).2. BOD is the amount of dissolved oxygen needed by bacteria in decomposing the organic wastes present in water.3. It is expressed in milligrams of oxygen per litre of water.Which of these statements is/are correct?- a) 1 and 2 only
- b) 2 and 3 only
- c) 1 and 3 only
- d) All of the above
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
1. Water pollution by organic wastes is measured in terms of Biochemical Oxygen Demand (BOD).
2. BOD is the amount of dissolved oxygen needed by bacteria in decomposing the organic wastes present in water.
3. It is expressed in milligrams of oxygen per litre of water.
Which of these statements is/are correct?
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
All of the above
|
Rohit Datta answered |
Water Pollution and Biochemical Oxygen Demand (BOD)
Introduction:
Water pollution is a significant environmental issue that poses a threat to the health and well-being of humans and ecosystems. Organic wastes, such as sewage, agricultural runoff, and industrial effluents, can contribute to water pollution. Biochemical Oxygen Demand (BOD) is a crucial parameter used to measure the extent of water pollution caused by organic wastes.
Statement 1: Water pollution by organic wastes is measured in terms of Biochemical Oxygen Demand (BOD).
This statement is correct. Biochemical Oxygen Demand (BOD) is a widely used parameter for measuring the level of organic pollution in water bodies. BOD helps to determine the amount of oxygen required by microorganisms to break down the organic matter present in the water.
Statement 2: BOD is the amount of dissolved oxygen needed by bacteria in decomposing the organic wastes present in water.
This statement is correct. BOD quantifies the amount of oxygen consumed by bacteria and other microorganisms as they decompose the organic matter in the water. Bacteria require oxygen to carry out biological processes involved in breaking down the organic wastes, and BOD helps to estimate this oxygen demand.
Statement 3: It is expressed in milligrams of oxygen per liter of water.
This statement is correct. BOD is typically expressed in milligrams of oxygen required per liter of water (mg/L). It represents the amount of oxygen needed by microorganisms to oxidize the organic compounds present in the water.
Conclusion:
All three statements are correct. Water pollution caused by organic wastes is measured using Biochemical Oxygen Demand (BOD), which represents the amount of dissolved oxygen required by bacteria and other microorganisms to decompose the organic matter in the water. BOD is expressed in milligrams of oxygen per liter of water, providing a quantitative measure of water pollution. Monitoring BOD levels is essential for assessing the impact of organic pollution and implementing effective pollution control measures.
Introduction:
Water pollution is a significant environmental issue that poses a threat to the health and well-being of humans and ecosystems. Organic wastes, such as sewage, agricultural runoff, and industrial effluents, can contribute to water pollution. Biochemical Oxygen Demand (BOD) is a crucial parameter used to measure the extent of water pollution caused by organic wastes.
Statement 1: Water pollution by organic wastes is measured in terms of Biochemical Oxygen Demand (BOD).
This statement is correct. Biochemical Oxygen Demand (BOD) is a widely used parameter for measuring the level of organic pollution in water bodies. BOD helps to determine the amount of oxygen required by microorganisms to break down the organic matter present in the water.
Statement 2: BOD is the amount of dissolved oxygen needed by bacteria in decomposing the organic wastes present in water.
This statement is correct. BOD quantifies the amount of oxygen consumed by bacteria and other microorganisms as they decompose the organic matter in the water. Bacteria require oxygen to carry out biological processes involved in breaking down the organic wastes, and BOD helps to estimate this oxygen demand.
Statement 3: It is expressed in milligrams of oxygen per liter of water.
This statement is correct. BOD is typically expressed in milligrams of oxygen required per liter of water (mg/L). It represents the amount of oxygen needed by microorganisms to oxidize the organic compounds present in the water.
Conclusion:
All three statements are correct. Water pollution caused by organic wastes is measured using Biochemical Oxygen Demand (BOD), which represents the amount of dissolved oxygen required by bacteria and other microorganisms to decompose the organic matter in the water. BOD is expressed in milligrams of oxygen per liter of water, providing a quantitative measure of water pollution. Monitoring BOD levels is essential for assessing the impact of organic pollution and implementing effective pollution control measures.
Which of these are correctly matched? 1. Arresters - These are used to separate particulate matters from contaminated air2. Scrubbers - These are used to clean air for both dusts and gases by passing it through a dry or wet packing materialWhich of these statements is/are correct:- a) 1 only
- b) 2 only
- c) Both 1 and 2
- d) Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Which of these are correctly matched?
1. Arresters - These are used to separate particulate matters from contaminated air
2. Scrubbers - These are used to clean air for both dusts and gases by passing it through a dry or wet packing material
Which of these statements is/are correct:
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
Chirag Chawla answered |
Correctly Matched Terms and their Descriptions:
1. Arresters - These are used to separate particulate matters from contaminated air
2. Scrubbers - These are used to clean air for both dusts and gases by passing it through a dry or wet packing material
Explanation:
The given statements are related to air pollution control devices. The first statement is about Arresters and describes their function, which is to remove particulate matter from contaminated air. The second statement is about Scrubbers, which clean air by passing it through dry or wet packing material. Both of these statements are correctly matched with their respective devices.
Hence, option 'C' is the correct answer.
1. Arresters - These are used to separate particulate matters from contaminated air
2. Scrubbers - These are used to clean air for both dusts and gases by passing it through a dry or wet packing material
Explanation:
The given statements are related to air pollution control devices. The first statement is about Arresters and describes their function, which is to remove particulate matter from contaminated air. The second statement is about Scrubbers, which clean air by passing it through dry or wet packing material. Both of these statements are correctly matched with their respective devices.
Hence, option 'C' is the correct answer.
Q. Which of the following is/are advantages of fly ash?
1.Fly ash bricks are light in weight and offer high strength and durability.
2.Fly ash is a better fill material for road embankments and in concrete roads.
3.Fly ash can be used in reclamation of wastelands.
Which of these statements is/are correct?
- a)All of these
- b)2 and 3 only
- c)1 and 3 only
- d)3 only
Correct answer is option 'A'. Can you explain this answer?
Q. Which of the following is/are advantages of fly ash?
1.Fly ash bricks are light in weight and offer high strength and durability.
2.Fly ash is a better fill material for road embankments and in concrete roads.
3.Fly ash can be used in reclamation of wastelands.
1.Fly ash bricks are light in weight and offer high strength and durability.
2.Fly ash is a better fill material for road embankments and in concrete roads.
3.Fly ash can be used in reclamation of wastelands.
Which of these statements is/are correct?
a)
All of these
b)
2 and 3 only
c)
1 and 3 only
d)
3 only
|
Isha Pillai answered |
Advantages of Fly Ash
1. Light Weight and High Strength
Fly ash bricks are made from a combination of fly ash, sand, lime, and gypsum. One of the major advantages of using fly ash in brick production is that it makes the bricks lighter in weight compared to traditional clay bricks. This makes them easier to handle, transport, and install. Despite their lightweight, fly ash bricks offer high strength and durability, making them suitable for various construction applications.
2. Better Fill Material for Road Embankments and Concrete Roads
Fly ash has been widely used as a fill material for road embankments due to its excellent compaction properties. It helps in reducing settlement and improves the stability of the embankment. Additionally, fly ash can be used in the construction of concrete roads. It acts as a supplementary cementitious material, enhancing the strength and durability of the concrete. The use of fly ash in concrete also helps in reducing the amount of cement required, which leads to cost savings and a lower carbon footprint.
3. Settles on Leaves and Crops
Fly ash particles, when released into the air, tend to settle on the surface of leaves and crops. This deposition of fly ash can have both positive and negative effects. On one hand, it can provide some nutrients to the plants, contributing to their growth. On the other hand, excessive deposition of fly ash can obstruct the normal functioning of leaves and reduce the photosynthetic efficiency of plants. Therefore, it is important to regulate the amount of fly ash released into the atmosphere to avoid adverse effects on vegetation.
Explanation of Correct Answer
The correct answer is option 'A' (1 and 2 only) because statement 3 about fly ash settling on leaves and crops is partially correct. While it is true that fly ash can settle on leaves and crops, the overall impact of this deposition can vary depending on the concentration and duration of exposure. Therefore, statement 3 cannot be considered completely correct. However, statements 1 and 2 are valid advantages of fly ash and contribute to its widespread use in the construction industry.
1. Light Weight and High Strength
Fly ash bricks are made from a combination of fly ash, sand, lime, and gypsum. One of the major advantages of using fly ash in brick production is that it makes the bricks lighter in weight compared to traditional clay bricks. This makes them easier to handle, transport, and install. Despite their lightweight, fly ash bricks offer high strength and durability, making them suitable for various construction applications.
2. Better Fill Material for Road Embankments and Concrete Roads
Fly ash has been widely used as a fill material for road embankments due to its excellent compaction properties. It helps in reducing settlement and improves the stability of the embankment. Additionally, fly ash can be used in the construction of concrete roads. It acts as a supplementary cementitious material, enhancing the strength and durability of the concrete. The use of fly ash in concrete also helps in reducing the amount of cement required, which leads to cost savings and a lower carbon footprint.
3. Settles on Leaves and Crops
Fly ash particles, when released into the air, tend to settle on the surface of leaves and crops. This deposition of fly ash can have both positive and negative effects. On one hand, it can provide some nutrients to the plants, contributing to their growth. On the other hand, excessive deposition of fly ash can obstruct the normal functioning of leaves and reduce the photosynthetic efficiency of plants. Therefore, it is important to regulate the amount of fly ash released into the atmosphere to avoid adverse effects on vegetation.
Explanation of Correct Answer
The correct answer is option 'A' (1 and 2 only) because statement 3 about fly ash settling on leaves and crops is partially correct. While it is true that fly ash can settle on leaves and crops, the overall impact of this deposition can vary depending on the concentration and duration of exposure. Therefore, statement 3 cannot be considered completely correct. However, statements 1 and 2 are valid advantages of fly ash and contribute to its widespread use in the construction industry.
Which of the following is a salient feature of the Plastic Waste Management Rules, 2016?- a)Ban on all types of plastic usage.
- b)Promotion of plastic waste for road construction.
- c)Mandatory recycling of all plastic products.
- d)Complete phasing out of plastic bags.
Correct answer is option 'B'. Can you explain this answer?
Which of the following is a salient feature of the Plastic Waste Management Rules, 2016?
a)
Ban on all types of plastic usage.
b)
Promotion of plastic waste for road construction.
c)
Mandatory recycling of all plastic products.
d)
Complete phasing out of plastic bags.
|
Upsc Toppers answered |
One of the key features of these rules is to encourage the use of plastic waste in road construction and energy recovery.
Statement 1: Thermal pollution primarily occurs from industrial activities like discharging hot water from factories.
Statement 2: Thermal pollution only affects the temperature of the water bodies and has no impact on the aquatic life.- a)Both statements are true.
- b)Statement 1 is true, but Statement 2 is false.
- c)Both statements are false.
- d)Statement 1 is false, but Statement 2 is true.
Correct answer is option 'B'. Can you explain this answer?
Statement 1: Thermal pollution primarily occurs from industrial activities like discharging hot water from factories.
Statement 2: Thermal pollution only affects the temperature of the water bodies and has no impact on the aquatic life.
Statement 2: Thermal pollution only affects the temperature of the water bodies and has no impact on the aquatic life.
a)
Both statements are true.
b)
Statement 1 is true, but Statement 2 is false.
c)
Both statements are false.
d)
Statement 1 is false, but Statement 2 is true.
|
|
Niharika Roy answered |
Statement Analysis:
Statement 1: Thermal pollution primarily occurs from industrial activities like discharging hot water from factories.
- This statement is true. Thermal pollution is caused by the release of heated water into natural bodies of water, often from industrial processes like power plants, factories, and other facilities.
Statement 2: Thermal pollution only affects the temperature of the water bodies and has no impact on the aquatic life.
- This statement is false. Thermal pollution can have detrimental effects on aquatic life. Increased water temperatures can decrease oxygen levels, disrupt ecosystems, and even lead to the death of aquatic organisms. Many species of fish and other aquatic organisms have specific temperature requirements for survival, and thermal pollution can disrupt these delicate balances.
Conclusion:
- While Statement 1 correctly identifies the source of thermal pollution, Statement 2 is inaccurate in claiming that thermal pollution has no impact on aquatic life. In reality, thermal pollution can have significant negative effects on the ecosystems of water bodies where it occurs.
Statement 1: Thermal pollution primarily occurs from industrial activities like discharging hot water from factories.
- This statement is true. Thermal pollution is caused by the release of heated water into natural bodies of water, often from industrial processes like power plants, factories, and other facilities.
Statement 2: Thermal pollution only affects the temperature of the water bodies and has no impact on the aquatic life.
- This statement is false. Thermal pollution can have detrimental effects on aquatic life. Increased water temperatures can decrease oxygen levels, disrupt ecosystems, and even lead to the death of aquatic organisms. Many species of fish and other aquatic organisms have specific temperature requirements for survival, and thermal pollution can disrupt these delicate balances.
Conclusion:
- While Statement 1 correctly identifies the source of thermal pollution, Statement 2 is inaccurate in claiming that thermal pollution has no impact on aquatic life. In reality, thermal pollution can have significant negative effects on the ecosystems of water bodies where it occurs.
Which of the following is not a control measure for light pollution?- a)Using energy-efficient bulbs.
- b)Increasing the brightness of outdoor lighting.
- c)Using bulbs with the right spectral power distributions.
- d)Using light only when necessary.
Correct answer is option 'B'. Can you explain this answer?
Which of the following is not a control measure for light pollution?
a)
Using energy-efficient bulbs.
b)
Increasing the brightness of outdoor lighting.
c)
Using bulbs with the right spectral power distributions.
d)
Using light only when necessary.
|
|
Aarya Dey answered |
Increasing the brightness of outdoor lighting:
Increasing the brightness of outdoor lighting is not a control measure for light pollution. In fact, it exacerbates the problem by adding to the overall illumination of the night sky, leading to increased light pollution.
Control Measures for Light Pollution:
Using energy-efficient bulbs:
Using energy-efficient bulbs can help reduce light pollution as they consume less electricity and emit less light. This can lead to a decrease in the overall brightness of outdoor lighting, thereby mitigating light pollution.
Using bulbs with the right spectral power distributions:
Bulbs with the right spectral power distributions emit light in specific wavelengths that are less likely to contribute to light pollution. By using such bulbs, it is possible to minimize the impact on the night sky and surrounding environment.
Using light only when necessary:
One of the most effective ways to control light pollution is to use light only when necessary. This means turning off unnecessary outdoor lighting, using motion sensors or timers to control lighting, and adopting responsible lighting practices to reduce light pollution.
Therefore, increasing the brightness of outdoor lighting is not a suitable control measure for light pollution, as it goes against the principles of reducing unnecessary illumination and preserving the natural darkness of the night sky.
Which of the following are the effects of soil pollution on agriculture:1. Increased salinity.2. Loss of soil and nutrients.3. Increased nitrogen fixation.Which of these statements is/are correct?- a) 1 and 2 only
- b) 2 and 3 only
- c) 1 and 3 only
- d) All of the above
Correct answer is option 'A'. Can you explain this answer?
Which of the following are the effects of soil pollution on agriculture:
1. Increased salinity.
2. Loss of soil and nutrients.
3. Increased nitrogen fixation.
Which of these statements is/are correct?
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
All of the above
|
Kavita Mehta answered |
Effects of soil pollution on Agriculture; Reduced soil fertility; Reduced nitrogen fixation; Increased erosion; Loss of soil and nutrients; Reduced crop yield; Increased salinity; Deposition of silt in tanks and reservoirs
Which of the following is not a consequence of plastic pollution in marine environments?- a)Ingestion by Antarctic krill and zooplankton.
- b)Increased primary production in seawater.
- c)Concentration of toxic compounds from seawater.
- d)Distress in over 250 species worldwide.
Correct answer is option 'B'. Can you explain this answer?
Which of the following is not a consequence of plastic pollution in marine environments?
a)
Ingestion by Antarctic krill and zooplankton.
b)
Increased primary production in seawater.
c)
Concentration of toxic compounds from seawater.
d)
Distress in over 250 species worldwide.
|
Garima Das answered |
Increased primary production in seawater:
Increased primary production in seawater is not a consequence of plastic pollution in marine environments. Plastic pollution, on the contrary, has detrimental effects on marine ecosystems and biodiversity. Some of the consequences of plastic pollution in marine environments include:
Ingestion by Antarctic krill and zooplankton:
Plastic pollution can be mistaken for food by marine organisms such as Antarctic krill and zooplankton, leading to ingestion. This can have negative impacts on their health and survival.
Concentration of toxic compounds from seawater:
Plastic pollution can act as a magnet for toxic compounds such as pesticides and heavy metals present in seawater. These toxic compounds can then accumulate in the tissues of marine organisms, posing a threat to their health and potentially entering the food chain.
Distress in over 250 species worldwide:
Plastic pollution can cause distress in over 250 species worldwide, including seabirds, turtles, marine mammals, and fish. Animals can become entangled in plastic debris, suffer from internal injuries due to ingestion, or experience habitat destruction.
In conclusion, while plastic pollution has numerous negative consequences for marine environments, increased primary production in seawater is not one of them. It is essential to address plastic pollution through proper waste management, recycling initiatives, and awareness campaigns to protect marine ecosystems and biodiversity.
What is the main ecological effect of warm water in thermal pollution?- a)Increased oxygen levels in water.
- b)Decreased metabolic rates in aquatic animals.
- c)Enhanced growth of blue-green algae.
- d)Reduction in soil erosion.
Correct answer is option 'C'. Can you explain this answer?
What is the main ecological effect of warm water in thermal pollution?
a)
Increased oxygen levels in water.
b)
Decreased metabolic rates in aquatic animals.
c)
Enhanced growth of blue-green algae.
d)
Reduction in soil erosion.
|
K.L Institute answered |
Warm water from thermal pollution leads to lower oxygen levels and may cause the proliferation of blue-green algae.
Consider the following statements about the Ozone: 1. It releases mainly from air-conditioning systems and refrigeration.2. Vehicles and industries are the major source of ground-level ozone emissions.Which of these statements is/are correct?- a) 1 only
- b) 2 only
- c) Both 1 and 2
- d) Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements about the Ozone:
1. It releases mainly from air-conditioning systems and refrigeration.
2. Vehicles and industries are the major source of ground-level ozone emissions.
Which of these statements is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
Ojasvi Mehta answered |
Ozone: It occurs naturally in the upper layers of the atmosphere.
This important gas shields the earth from the harmful ultraviolet rays of the sun. However, at the ground level, it is a pollutant with highly toxic effects. Vehicles and industries are the major sources of ground-level ozone emissions. Ozone makes our eyes itch, burn, and water. It lowers our resistance to cold and pneumonia.
Consider the following statements:1. DDT2. Salts of heavy metals3. Radioactive substancesWhich of these pollutants is/are non-biodegradable?- a) 1 and 2 only
- b) 2 and 3 only
- c) 1 and 3 only
- d) All of the above
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
1. DDT
2. Salts of heavy metals
3. Radioactive substances
Which of these pollutants is/are non-biodegradable?
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
All of the above
|
|
Rahul Choudhury answered |
DDT, Salts of heavy metals, Radioactive substances are some of the examples of non-biodegradable pollutants.
Consider the following statements regarding the formation of smog: 1. Photochemical smog is a term used to describe air pollution that is a result of the interaction of sunlight with certain chemicals in the atmosphere.2. Ground-level ozone is formed when vehicle emissions contain nitrogen oxides and volatile organic compounds.Which of these statements is/are correct?- a) 1 only
- b) 2 only
- c) Both 1 and 2
- d) Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements regarding the formation of smog:
1. Photochemical smog is a term used to describe air pollution that is a result of the interaction of sunlight with certain chemicals in the atmosphere.
2. Ground-level ozone is formed when vehicle emissions contain nitrogen oxides and volatile organic compounds.
Which of these statements is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Vaishnavi Mukherjee answered |
Explanation:
Photochemical smog is a type of smog that is formed when sunlight reacts with certain chemicals in the atmosphere. Ground-level ozone is a major component of photochemical smog. Let's analyze each statement individually to determine their correctness.
Statement 1: Photochemical smog is a term used to describe air pollution that is a result of the interaction of sunlight with certain chemicals in the atmosphere.
This statement is correct. Photochemical smog is formed when sunlight interacts with pollutants such as nitrogen oxides (NOx), volatile organic compounds (VOCs), and other reactive organic gases. These pollutants are emitted from various sources including vehicle exhaust, industrial processes, and chemical solvents. When these pollutants react with sunlight, they form a complex mixture of secondary pollutants such as ozone, peroxyacyl nitrates (PANs), and aldehydes. These pollutants contribute to the formation of smog and can have adverse effects on human health and the environment.
Statement 2: Ground-level ozone is formed when vehicle emissions contain nitrogen oxides and volatile organic compounds.
This statement is also correct. Ground-level ozone is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight. Vehicle emissions are a significant source of these pollutants. Nitrogen oxides are released from the combustion of fossil fuels in vehicles' engines, while volatile organic compounds can come from vehicle exhaust, fuel evaporation, and other sources. When these pollutants are emitted and exposed to sunlight, they undergo a series of chemical reactions that lead to the formation of ground-level ozone. Ground-level ozone is a harmful pollutant and a key component of photochemical smog.
Therefore, both statements are correct. Photochemical smog is formed when sunlight interacts with certain chemicals in the atmosphere, and ground-level ozone is a major component of photochemical smog that is formed when vehicle emissions contain nitrogen oxides and volatile organic compounds.
Photochemical smog is a type of smog that is formed when sunlight reacts with certain chemicals in the atmosphere. Ground-level ozone is a major component of photochemical smog. Let's analyze each statement individually to determine their correctness.
Statement 1: Photochemical smog is a term used to describe air pollution that is a result of the interaction of sunlight with certain chemicals in the atmosphere.
This statement is correct. Photochemical smog is formed when sunlight interacts with pollutants such as nitrogen oxides (NOx), volatile organic compounds (VOCs), and other reactive organic gases. These pollutants are emitted from various sources including vehicle exhaust, industrial processes, and chemical solvents. When these pollutants react with sunlight, they form a complex mixture of secondary pollutants such as ozone, peroxyacyl nitrates (PANs), and aldehydes. These pollutants contribute to the formation of smog and can have adverse effects on human health and the environment.
Statement 2: Ground-level ozone is formed when vehicle emissions contain nitrogen oxides and volatile organic compounds.
This statement is also correct. Ground-level ozone is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight. Vehicle emissions are a significant source of these pollutants. Nitrogen oxides are released from the combustion of fossil fuels in vehicles' engines, while volatile organic compounds can come from vehicle exhaust, fuel evaporation, and other sources. When these pollutants are emitted and exposed to sunlight, they undergo a series of chemical reactions that lead to the formation of ground-level ozone. Ground-level ozone is a harmful pollutant and a key component of photochemical smog.
Therefore, both statements are correct. Photochemical smog is formed when sunlight interacts with certain chemicals in the atmosphere, and ground-level ozone is a major component of photochemical smog that is formed when vehicle emissions contain nitrogen oxides and volatile organic compounds.
Consider the following statements:1. Biocides, polychlorinated biphenyls (PCBs) and heavy metals directly eliminate sensitive aquatic organisms.2. Hot waters discharged from industries, when added to water bodies, lowers its DO content.Which of these statements is/are not correct?- a) 1 only
- b) 2 only
- c) Both 1 and 2
- d) Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
1. Biocides, polychlorinated biphenyls (PCBs) and heavy metals directly eliminate sensitive aquatic organisms.
2. Hot waters discharged from industries, when added to water bodies, lowers its DO content.
Which of these statements is/are not correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
Maheshwar Jain answered |
Statement 1: Biocides, polychlorinated biphenyls (PCBs), and heavy metals directly eliminate sensitive aquatic organisms.
Explanation:
Biocides, PCBs, and heavy metals are all toxic substances that can have harmful effects on aquatic organisms. These substances can be introduced into water bodies through various sources such as industrial discharges, agricultural runoff, and improper waste disposal. When present in water, they can directly eliminate sensitive aquatic organisms by causing toxicity or even death. Biocides are specifically designed to kill or control the growth of organisms, while PCBs and heavy metals can have toxic effects on aquatic organisms at certain concentrations.
Statement 2: Hot waters discharged from industries, when added to water bodies, lowers its DO content.
Explanation:
When hot water is discharged from industries into water bodies, it can have several negative impacts on the aquatic ecosystem. One such impact is the reduction in dissolved oxygen (DO) content. Dissolved oxygen is essential for the survival of aquatic organisms as they rely on it for respiration. However, when hot water is added to water bodies, it can cause several changes that lead to a decrease in DO levels:
1. Increased water temperature: Hot water increases the temperature of the receiving water body. As water temperature rises, the solubility of oxygen decreases, leading to a decrease in DO levels.
2. Reduced oxygen diffusion: Higher water temperatures reduce the ability of oxygen to dissolve and diffuse into the water. This further contributes to a decrease in DO levels.
3. Increased metabolic rates: The introduction of hot water can increase the metabolic rates of aquatic organisms. This increased metabolic activity leads to higher oxygen consumption, further depleting DO levels.
Overall, the addition of hot water from industries to water bodies can result in a decrease in DO content, which can be detrimental to aquatic organisms that rely on oxygen for survival.
Conclusion:
Based on the explanations provided, both statements 1 and 2 are correct. Therefore, the correct answer is option 'D' - Neither 1 nor 2.
Explanation:
Biocides, PCBs, and heavy metals are all toxic substances that can have harmful effects on aquatic organisms. These substances can be introduced into water bodies through various sources such as industrial discharges, agricultural runoff, and improper waste disposal. When present in water, they can directly eliminate sensitive aquatic organisms by causing toxicity or even death. Biocides are specifically designed to kill or control the growth of organisms, while PCBs and heavy metals can have toxic effects on aquatic organisms at certain concentrations.
Statement 2: Hot waters discharged from industries, when added to water bodies, lowers its DO content.
Explanation:
When hot water is discharged from industries into water bodies, it can have several negative impacts on the aquatic ecosystem. One such impact is the reduction in dissolved oxygen (DO) content. Dissolved oxygen is essential for the survival of aquatic organisms as they rely on it for respiration. However, when hot water is added to water bodies, it can cause several changes that lead to a decrease in DO levels:
1. Increased water temperature: Hot water increases the temperature of the receiving water body. As water temperature rises, the solubility of oxygen decreases, leading to a decrease in DO levels.
2. Reduced oxygen diffusion: Higher water temperatures reduce the ability of oxygen to dissolve and diffuse into the water. This further contributes to a decrease in DO levels.
3. Increased metabolic rates: The introduction of hot water can increase the metabolic rates of aquatic organisms. This increased metabolic activity leads to higher oxygen consumption, further depleting DO levels.
Overall, the addition of hot water from industries to water bodies can result in a decrease in DO content, which can be detrimental to aquatic organisms that rely on oxygen for survival.
Conclusion:
Based on the explanations provided, both statements 1 and 2 are correct. Therefore, the correct answer is option 'D' - Neither 1 nor 2.
Consider the following statements about the carbon monoxide:
1. It lowers the amount of oxygen that enters our blood
2. It is produced from the combustion of natural and synthetic products which gives it a light black colour.
Which of these statements is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements about the carbon monoxide:
1. It lowers the amount of oxygen that enters our blood
2. It is produced from the combustion of natural and synthetic products which gives it a light black colour.
Which of these statements is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Mira Sharma answered |
Correct Statement: 1
Yes, carbon monoxide (CO) can lower the amount of oxygen in your blood. When inhaled, CO binds to hemoglobin in red blood cells, forming carboxyhemoglobin (COHb). This reduces the amount of hemoglobin available to carry oxygen.
Yes, carbon monoxide (CO) can lower the amount of oxygen in your blood. When inhaled, CO binds to hemoglobin in red blood cells, forming carboxyhemoglobin (COHb). This reduces the amount of hemoglobin available to carry oxygen.
In the context of acid rain, which metal's increased concentration in drinking water is linked to renal tubular damage?- a)Mercury
- b)Aluminium
- c)Cadmium
- d)Lead
Correct answer is option 'C'. Can you explain this answer?
In the context of acid rain, which metal's increased concentration in drinking water is linked to renal tubular damage?
a)
Mercury
b)
Aluminium
c)
Cadmium
d)
Lead
|
Goel UPSC Coaching Center answered |
A decrease in water pH due to acid rain can result in a fivefold increase in cadmium concentration in drinking water, potentially causing renal tubular damage.
Statement 1: The Environment (Protection) Act, 1986, provides immunity to government officers for actions taken under the Act.
Statement 2: Civil Courts are authorized to entertain suits related to actions taken by the Central Government under this Act.- a)Both statements are true.
- b)Statement 1 is true, but Statement 2 is false.
- c)Both statements are false.
- d)Statement 1 is false, but Statement 2 is true.
Correct answer is option 'B'. Can you explain this answer?
Statement 1: The Environment (Protection) Act, 1986, provides immunity to government officers for actions taken under the Act.
Statement 2: Civil Courts are authorized to entertain suits related to actions taken by the Central Government under this Act.
Statement 2: Civil Courts are authorized to entertain suits related to actions taken by the Central Government under this Act.
a)
Both statements are true.
b)
Statement 1 is true, but Statement 2 is false.
c)
Both statements are false.
d)
Statement 1 is false, but Statement 2 is true.
|
BT Educators answered |
The Act does grant immunity to government officers for their actions under it, but it bars civil courts from entertaining suits regarding actions taken by the Central Government or statutory authorities under this Act.
Match the following pollutants with their primary sources:
- a)1-C, 2-A, 3-B
- b)1-A, 2-B, 3-C
- c)1-C, 2-B, 3-A
- d)1-B, 2-C, 3-A
Correct answer is option 'A'. Can you explain this answer?
Match the following pollutants with their primary sources:
a)
1-C, 2-A, 3-B
b)
1-A, 2-B, 3-C
c)
1-C, 2-B, 3-A
d)
1-B, 2-C, 3-A
|
Lohit Matani answered |
Sulphur Dioxide predominantly comes from burning coal and petroleum, Nitrogen Oxides from natural sources like lightning and volcanic eruptions, and Formic Acid from biomass burning during forest fires.
Which industrial sector category under MoEFCC does NOT require Environmental Clearance (EC) and Consent?- a)Red
- b)Orange
- c)Green
- d)White
Correct answer is option 'D'. Can you explain this answer?
Which industrial sector category under MoEFCC does NOT require Environmental Clearance (EC) and Consent?
a)
Red
b)
Orange
c)
Green
d)
White
|
Divey Sethi answered |
The White category, representing practically non-polluting industries, does not require Environmental Clearance (EC) and Consent.
Acid rain has a significant impact on:- a)Only soil and water bodies
- b)Soil, water bodies, and vegetation
- c)Soil, vegetation, and wildlife only
- d)Soil, water bodies, vegetation, wildlife, and human health
Correct answer is option 'D'. Can you explain this answer?
Acid rain has a significant impact on:
a)
Only soil and water bodies
b)
Soil, water bodies, and vegetation
c)
Soil, vegetation, and wildlife only
d)
Soil, water bodies, vegetation, wildlife, and human health
|
|
Lohit Matani answered |
Acid rain impacts soil, water bodies, vegetation, wildlife, and human health in various ways, including affecting soil fertility, aquatic life, plant growth, and contributing to human diseases.
Which of the following is NOT a natural source of Sulphur emissions?- a)Seas and oceans
- b)Volcanic eruptions
- c)Burning of coal
- d)Biological processes in soil
Correct answer is option 'C'. Can you explain this answer?
Which of the following is NOT a natural source of Sulphur emissions?
a)
Seas and oceans
b)
Volcanic eruptions
c)
Burning of coal
d)
Biological processes in soil
|
Future Foundation Institute answered |
Burning of coal is a man-made source of Sulphur emissions, not a natural one.
Which form of acid deposition occurs in dry-weather areas and adheres to surfaces like ground and buildings?- a)Wet Deposition
- b)Dry Deposition
- c)Acidic Precipitation
- d)Acidic Runoff
Correct answer is option 'B'. Can you explain this answer?
Which form of acid deposition occurs in dry-weather areas and adheres to surfaces like ground and buildings?
a)
Wet Deposition
b)
Dry Deposition
c)
Acidic Precipitation
d)
Acidic Runoff
|
Master Training Institute answered |
In dry-weather areas, acid chemicals may mix with dust or smoke and fall to the ground as dry deposition, adhering to various surfaces.
What is the primary impact of acid rain on soil?- a)Increase in soil nutrients
- b)Reduction in soil acidity
- c)Leaching of soil nutrients
- d)Enhancement of soil fertility
Correct answer is option 'C'. Can you explain this answer?
What is the primary impact of acid rain on soil?
a)
Increase in soil nutrients
b)
Reduction in soil acidity
c)
Leaching of soil nutrients
d)
Enhancement of soil fertility
|
|
Lohit Matani answered |
Acid rain leads to the exchange between hydrogen ions and nutrient cations, causing leaching of essential nutrients and leading to soil infertility.
Statement 1: The pH scale ranges from 0 to 14, where lower values indicate higher acidity.
Statement 2: A solution with a pH of 4 is a hundred times more acidic than one with a pH of 6.- a)Both statements are true
- b)Statement 1 is true, but Statement 2 is false
- c)Statement 1 is false, but Statement 2 is true
- d)Both statements are false
Correct answer is option 'A'. Can you explain this answer?
Statement 1: The pH scale ranges from 0 to 14, where lower values indicate higher acidity.
Statement 2: A solution with a pH of 4 is a hundred times more acidic than one with a pH of 6.
Statement 2: A solution with a pH of 4 is a hundred times more acidic than one with a pH of 6.
a)
Both statements are true
b)
Statement 1 is true, but Statement 2 is false
c)
Statement 1 is false, but Statement 2 is true
d)
Both statements are false
|
|
Lohit Matani answered |
The pH scale does range from 0 to 14, with lower values indicating higher acidity. A pH of 4 is indeed a hundred times more acidic than a pH of 6.
What is the primary effect of acid rain on human health?- a)Improved respiratory function
- b)No significant impact
- c)Enhanced visibility and better skin health
- d)Respiratory problems and potential food poisoning
Correct answer is option 'D'. Can you explain this answer?
What is the primary effect of acid rain on human health?
a)
Improved respiratory function
b)
No significant impact
c)
Enhanced visibility and better skin health
d)
Respiratory problems and potential food poisoning
|
Lakshya Ias answered |
Acid rain can cause respiratory issues, irritate the skin, eyes, and respiratory tract, and lead to food poisoning through contaminated drinking water and food.
What is the primary ecological effect of cold water thermal pollution?- a)Increased algal blooms.
- b)Impact on fish, macroinvertebrates, and river productivity.
- c)Enhanced decomposition of organic matter.
- d)Reduction in water clarity.
Correct answer is option 'B'. Can you explain this answer?
What is the primary ecological effect of cold water thermal pollution?
a)
Increased algal blooms.
b)
Impact on fish, macroinvertebrates, and river productivity.
c)
Enhanced decomposition of organic matter.
d)
Reduction in water clarity.
|
EduRev UPSC answered |
Cold water thermal pollution affects aquatic life, including fish and macroinvertebrates, and impacts river productivity.
Statement 1: The Environment Protection Act Amendment 2022 substituted imprisonment with fines for certain violations.
Statement 2: The amendment applies equally to all violations, regardless of their severity.- a)Both statements are true.
- b)Statement 1 is true, but Statement 2 is false.
- c)Both statements are false.
- d)Statement 1 is false, but Statement 2 is true.
Correct answer is option 'B'. Can you explain this answer?
Statement 1: The Environment Protection Act Amendment 2022 substituted imprisonment with fines for certain violations.
Statement 2: The amendment applies equally to all violations, regardless of their severity.
Statement 2: The amendment applies equally to all violations, regardless of their severity.
a)
Both statements are true.
b)
Statement 1 is true, but Statement 2 is false.
c)
Both statements are false.
d)
Statement 1 is false, but Statement 2 is true.
|
Academic Studio answered |
While the 2022 amendment did replace imprisonment with fines for some violations, severe violations involving grievous injury or loss of life are still subject to harsher penalties.
Statement 1: The pH of a solution is a logarithmic measure of hydrogen ion concentration.
Statement 2: In the pH scale, a pH of 7 indicates high acidity.- a)Both statements are true
- b)Statement 1 is true, but Statement 2 is false
- c)Statement 1 is false, but Statement 2 is true
- d)Both statements are false
Correct answer is option 'B'. Can you explain this answer?
Statement 1: The pH of a solution is a logarithmic measure of hydrogen ion concentration.
Statement 2: In the pH scale, a pH of 7 indicates high acidity.
Statement 2: In the pH scale, a pH of 7 indicates high acidity.
a)
Both statements are true
b)
Statement 1 is true, but Statement 2 is false
c)
Statement 1 is false, but Statement 2 is true
d)
Both statements are false
|
|
Future Foundation Institute answered |
Statement 1 is correct as pH is a logarithmic index of hydrogen ion concentration. Statement 2 is incorrect because a pH of 7 is neutral, not highly acidic.
Which of the following statements is true about the Plastic Waste Management Rules, 2016?- a)They only apply to urban areas.
- b)They eliminated the use of plastic carry bags.
- c)They introduced Extended Producer Responsibility (EPR).
- d)They focused solely on industrial plastic waste.
Correct answer is option 'C'. Can you explain this answer?
Which of the following statements is true about the Plastic Waste Management Rules, 2016?
a)
They only apply to urban areas.
b)
They eliminated the use of plastic carry bags.
c)
They introduced Extended Producer Responsibility (EPR).
d)
They focused solely on industrial plastic waste.
|
|
EduRev UPSC answered |
The 2016 rules introduced EPR, making producers responsible for managing end-of-life plastic products.
Statement 1: Under the Environment Protection Act, 1986, the Central Government can regulate the supply of electricity and water without a court order for environmental protection.
Statement 2: This Act overrides any inconsistent provisions in other enactments, except for the Act itself.- a)Both statements are true.
- b)Statement 1 is true, but Statement 2 is false.
- c)Both statements are false.
- d)Statement 1 is false, but Statement 2 is true.
Correct answer is option 'A'. Can you explain this answer?
Statement 1: Under the Environment Protection Act, 1986, the Central Government can regulate the supply of electricity and water without a court order for environmental protection.
Statement 2: This Act overrides any inconsistent provisions in other enactments, except for the Act itself.
Statement 2: This Act overrides any inconsistent provisions in other enactments, except for the Act itself.
a)
Both statements are true.
b)
Statement 1 is true, but Statement 2 is false.
c)
Both statements are false.
d)
Statement 1 is false, but Statement 2 is true.
|
|
K.L Institute answered |
The Act empowers the Central Government with such authority, and its provisions have supremacy over inconsistent laws, excluding the Act itself.
Sequence the following events in chronological order:
(A) Prohibition of certain single-use plastics
(B) Environment (Protection) Act, 1986
(C) Increase in plastic carry bags' thickness- a)A, B, C
- b)B, A, C
- c)C, A, B
- d)B, C, A
Correct answer is option 'D'. Can you explain this answer?
Sequence the following events in chronological order:
(A) Prohibition of certain single-use plastics
(B) Environment (Protection) Act, 1986
(C) Increase in plastic carry bags' thickness
(A) Prohibition of certain single-use plastics
(B) Environment (Protection) Act, 1986
(C) Increase in plastic carry bags' thickness
a)
A, B, C
b)
B, A, C
c)
C, A, B
d)
B, C, A
|
Ias Masters answered |
The Environment (Protection) Act was enacted in 1986, followed by the increase in plastic bags' thickness, and then the prohibition of certain single-use plastics.
Match the following environmental issues with their respective effects:
- a)A-2, B-1, C-3
- b)A-3, B-2, C-1
- c)A-1, B-3, C-2
- d)A-3, B-1, C-2
Correct answer is option 'A'. Can you explain this answer?
Match the following environmental issues with their respective effects:
a)
A-2, B-1, C-3
b)
A-3, B-2, C-1
c)
A-1, B-3, C-2
d)
A-3, B-1, C-2
|
|
Lakshya Ias answered |
Thermal pollution primarily impacts aquatic life such as fish and macroinvertebrates. Light pollution disrupts circadian rhythms. Plastic pollution adversely affects marine biodiversity.
What does the Environmental Protection Fund, as per the Environment Protection Act Amendment 2022, primarily utilize?- a)Government budget allocations.
- b)International environmental grants.
- c)Funds collected as penalties for environmental violations.
- d)Donations from non-governmental organizations.
Correct answer is option 'C'. Can you explain this answer?
What does the Environmental Protection Fund, as per the Environment Protection Act Amendment 2022, primarily utilize?
a)
Government budget allocations.
b)
International environmental grants.
c)
Funds collected as penalties for environmental violations.
d)
Donations from non-governmental organizations.
|
|
Lakshya Ias answered |
The Environmental Protection Fund is replenished with the funds collected as penalties for environmental violations.
Consider the following statements:1. Alpha particles can be blocked by a piece of paper and human skin.2. Beta particles can penetrate through the skin, while can be blocked by some pieces of glass and metal.3. Gamma rays can penetrate easily to human skin and damage cells on its way through, reaching far, and can only be blocked by a very thick, strong, massive piece of concrete.Which of these statements is/are correct?- a) 1 and 2 only
- b) 2 and 3 only
- c) 1 and 3 only
- d) All of the above
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
1. Alpha particles can be blocked by a piece of paper and human skin.
2. Beta particles can penetrate through the skin, while can be blocked by some pieces of glass and metal.
3. Gamma rays can penetrate easily to human skin and damage cells on its way through, reaching far, and can only be blocked by a very thick, strong, massive piece of concrete.
Which of these statements is/are correct?
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
All of the above
|
|
Rahul Mehta answered |
- Alpha particles can be blocked by a piece of paper and human skin.
- Beta particles can penetrate through the skin, while can be blocked by some pieces of glass and metal.
Gamma rays can penetrate easily to human skin and damage cells on its way through, reaching far, and can only be blocked by a very thick, strong, massive piece of concrete.
What is the primary measure to reduce sulfur dioxide (SO2) emissions in controlling acid rain?- a)Increasing the use of sulfuric acid in industries
- b)Expanding urban areas
- c)Using more fossil fuels
- d)Using alternative energy sources and employing desulfurization methods
Correct answer is option 'D'. Can you explain this answer?
What is the primary measure to reduce sulfur dioxide (SO2) emissions in controlling acid rain?
a)
Increasing the use of sulfuric acid in industries
b)
Expanding urban areas
c)
Using more fossil fuels
d)
Using alternative energy sources and employing desulfurization methods
|
|
Goel UPSC Coaching Center answered |
Reducing SO2 emissions involves burning less fossil fuel, using alternative energy sources (like tidal, wind, hydropower), and applying desulfurization methods.
Statement 1: Vehicles globally are significant contributors to particulate matter in urban environments.
Statement 2: The highest exposure to vehicular fumes is typically found in rural areas.- a)Both statements are true
- b)Statement 1 is true, but Statement 2 is false
- c)Statement 1 is false, but Statement 2 is true
- d)Both statements are false
Correct answer is option 'B'. Can you explain this answer?
Statement 1: Vehicles globally are significant contributors to particulate matter in urban environments.
Statement 2: The highest exposure to vehicular fumes is typically found in rural areas.
Statement 2: The highest exposure to vehicular fumes is typically found in rural areas.
a)
Both statements are true
b)
Statement 1 is true, but Statement 2 is false
c)
Statement 1 is false, but Statement 2 is true
d)
Both statements are false
|
|
Academic Studio answered |
Statement 1 is correct as vehicles contribute significantly to urban particulate matter. Statement 2 is incorrect because the highest exposure to vehicular fumes occurs on roads and within 500 meters of them, typically in urban areas.
Which of the following areas in India has NOT been reported to experience acid rain?- a)Bombay
- b)Northeastern India
- c)Rajasthan
- d)West Bengal
Correct answer is option 'C'. Can you explain this answer?
Which of the following areas in India has NOT been reported to experience acid rain?
a)
Bombay
b)
Northeastern India
c)
Rajasthan
d)
West Bengal
|
|
Goel UPSC Coaching Center answered |
Bombay, northeastern India, and West Bengal have reported cases of acid rain, but there's no mention of Rajasthan experiencing acid rain.
Which amendment increased the thickness of plastic carry bags in India?- a)Plastic Waste Management Rules, 2016.
- b)Environment Protection Act Amendment 2022.
- c)Plastic Waste Management Amendment Rules, 2021.
- d)Plastic Waste Management Amendment Rules, 2018.
Correct answer is option 'C'. Can you explain this answer?
Which amendment increased the thickness of plastic carry bags in India?
a)
Plastic Waste Management Rules, 2016.
b)
Environment Protection Act Amendment 2022.
c)
Plastic Waste Management Amendment Rules, 2021.
d)
Plastic Waste Management Amendment Rules, 2018.
|
|
Future Foundation Institute answered |
The 2021 amendment specified the increase in the thickness of plastic carry bags.
Statement 1: Acid rain predominantly affects industrialized regions in the northern hemisphere.
Statement 2: The Great Smoky Mountains are unaffected by acid rain.- a)Both statements are true
- b)Statement 1 is true, but Statement 2 is false
- c)Statement 1 is false, but Statement 2 is true
- d)Both statements are false
Correct answer is option 'B'. Can you explain this answer?
Statement 1: Acid rain predominantly affects industrialized regions in the northern hemisphere.
Statement 2: The Great Smoky Mountains are unaffected by acid rain.
Statement 2: The Great Smoky Mountains are unaffected by acid rain.
a)
Both statements are true
b)
Statement 1 is true, but Statement 2 is false
c)
Statement 1 is false, but Statement 2 is true
d)
Both statements are false
|
|
Lakshya Ias answered |
Statement 1 is correct as acid rain significantly affects industrialized regions in the northern hemisphere. However, Statement 2 is false because the Great Smoky Mountains are indeed affected by acid rain.
Which category under MoEFCC's industrial sector categorization indicates the highest level of pollution?- a)Green
- b)White
- c)Orange
- d)Red
Correct answer is option 'D'. Can you explain this answer?
Which category under MoEFCC's industrial sector categorization indicates the highest level of pollution?
a)
Green
b)
White
c)
Orange
d)
Red
|
|
Lohit Matani answered |
The Red category under the MoEFCC's industrial sector categorization indicates the highest level of pollution.
The main source of thermal pollution includes:- a)Household sewage.
- b)Agricultural runoff.
- c)Power plants using water as a cooling agent.
- d)Natural hot springs.
Correct answer is option 'C'. Can you explain this answer?
The main source of thermal pollution includes:
a)
Household sewage.
b)
Agricultural runoff.
c)
Power plants using water as a cooling agent.
d)
Natural hot springs.
|
|
EduRev UPSC answered |
Industrial facilities, particularly power plants, contribute significantly to thermal pollution by using water as a cooling agent.
Match the following measures with their respective environmental concerns:
- a)A-1, B-2, C-3
- b)A-3, B-1, C-2
- c)A-2, B-3, C-1
- d)A-1, B-3, C-2
Correct answer is option 'A'. Can you explain this answer?
Match the following measures with their respective environmental concerns:
a)
A-1, B-2, C-3
b)
A-3, B-1, C-2
c)
A-2, B-3, C-1
d)
A-1, B-3, C-2
|
|
BT Educators answered |
Maintaining vegetation can help mitigate thermal pollution, using light only when necessary addresses light pollution, and increasing the thickness of carry bags is a measure against plastic pollution.
What is the effect of acid rain on wildlife?- a)No significant impact
- b)Only affects terrestrial animals
- c)Causes a shift in microbial species and affects aquatic life
- d)Leads to an increase in wildlife population
Correct answer is option 'C'. Can you explain this answer?
What is the effect of acid rain on wildlife?
a)
No significant impact
b)
Only affects terrestrial animals
c)
Causes a shift in microbial species and affects aquatic life
d)
Leads to an increase in wildlife population
|
|
Upsc Toppers answered |
Acid rain leads to a shift from bacteria-bound to fungi-bound microflora, impacting the decomposition of soil organic material and affecting aquatic life.
Control measures for acid rain include:- a)Increasing NOx emissions
- b)Reducing SO2 emissions and implementing buffering techniques
- c)Using more fossil fuels
- d)Ignoring the pH levels of water bodies
Correct answer is option 'B'. Can you explain this answer?
Control measures for acid rain include:
a)
Increasing NOx emissions
b)
Reducing SO2 emissions and implementing buffering techniques
c)
Using more fossil fuels
d)
Ignoring the pH levels of water bodies
|
|
Upsc Toppers answered |
Control measures for acid rain include reducing SO2 emissions, using alternative energy sources, and implementing buffering techniques like adding lime to acidified waters.
Assertion (A): Delhi's air contains multiple pollutants like particulate matter, nitrogen oxides, ozone, and toxins.
Reasoning (R): Focusing on reducing emissions from diesel, a class one carcinogen, can significantly improve air quality.- a)Both A and R are true, and R is the correct explanation of A
- b)Both A and R are true, but R is NOT the correct explanation of A
- c)A is true, but R is false
- d)A is false, but R is true
Correct answer is option 'B'. Can you explain this answer?
Assertion (A): Delhi's air contains multiple pollutants like particulate matter, nitrogen oxides, ozone, and toxins.
Reasoning (R): Focusing on reducing emissions from diesel, a class one carcinogen, can significantly improve air quality.
Reasoning (R): Focusing on reducing emissions from diesel, a class one carcinogen, can significantly improve air quality.
a)
Both A and R are true, and R is the correct explanation of A
b)
Both A and R are true, but R is NOT the correct explanation of A
c)
A is true, but R is false
d)
A is false, but R is true
|
|
Academic Studio answered |
Both statements are true, but reducing diesel emissions is just one of the many steps needed to improve air quality.
In the context of acid rain, 'Wet Deposition' refers to:- a)The fall of dry acid chemicals with dust or smoke
- b)The accumulation of acidic substances in dry weather areas
- c)The precipitation of acidic chemicals in the form of rain, snow, fog, or mist
- d)The chemical process of acid rain formation in the atmosphere
Correct answer is option 'C'. Can you explain this answer?
In the context of acid rain, 'Wet Deposition' refers to:
a)
The fall of dry acid chemicals with dust or smoke
b)
The accumulation of acidic substances in dry weather areas
c)
The precipitation of acidic chemicals in the form of rain, snow, fog, or mist
d)
The chemical process of acid rain formation in the atmosphere
|
|
Academic Studio answered |
Wet deposition refers to the precipitation of acidic chemicals carried to wet weather regions, falling as rain, snow, fog, or mist.
Which of the following is an effect of acid rain on vegetation?- a)Enhanced growth and greener foliage
- b)No significant impact
- c)Increased resistance to diseases and pests
- d)Reduced or abnormal growth and loss of biomass
Correct answer is option 'D'. Can you explain this answer?
Which of the following is an effect of acid rain on vegetation?
a)
Enhanced growth and greener foliage
b)
No significant impact
c)
Increased resistance to diseases and pests
d)
Reduced or abnormal growth and loss of biomass
|
|
Master Training Institute answered |
Acid rain affects trees and undergrowth, causing symptoms like reduced or abnormal growth, discoloration, and loss of biomass.
Assertion (A): The Environment (Protection) Act, 1986, authorizes the Central Government to collect samples as evidence of environmental offenses.
Reasoning (R): The Act aims to establish effective mechanisms for pollution prevention and control.- a)Both A and R are true, and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'A'. Can you explain this answer?
Assertion (A): The Environment (Protection) Act, 1986, authorizes the Central Government to collect samples as evidence of environmental offenses.
Reasoning (R): The Act aims to establish effective mechanisms for pollution prevention and control.
Reasoning (R): The Act aims to establish effective mechanisms for pollution prevention and control.
a)
Both A and R are true, and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
|
EduRev UPSC answered |
The Act empowers the government for environmental protection, including the collection of evidence for offenses.
In the context of light pollution, what does 'skyglow' refer to?- a)The brightness of the night sky caused by urban lighting.
- b)The glow from natural phenomena like the Northern Lights.
- c)The illumination of sports stadiums at night.
- d)The brightness of the stars as seen from Earth.
Correct answer is option 'A'. Can you explain this answer?
In the context of light pollution, what does 'skyglow' refer to?
a)
The brightness of the night sky caused by urban lighting.
b)
The glow from natural phenomena like the Northern Lights.
c)
The illumination of sports stadiums at night.
d)
The brightness of the stars as seen from Earth.
|
|
Future Foundation Institute answered |
Skyglow is the brightening of the night sky over inhabited areas, primarily due to artificial lighting.
Match the following Acts with their respective amendments:
- a)A-2, B-3, C-1
- b)A-1, B-2, C-3
- c)A-3, B-1, C-2
- d)A-1, B-3, C-2
Correct answer is option 'A'. Can you explain this answer?
Match the following Acts with their respective amendments:
a)
A-2, B-3, C-1
b)
A-1, B-2, C-3
c)
A-3, B-1, C-2
d)
A-1, B-3, C-2
|
Capstone Ias Learning answered |
The Environment Protection Act Amendment 2022 replaced imprisonment with fines. The Plastic Waste Management Rules, 2016 extended to rural areas. The Amendment Rules, 2021 increased the thickness of plastic carry bags.
What is the role of an 'adjudication officer' as per the Environment Protection Act Amendment 2022?- a)To regulate the pollution control boards.
- b)To determine penalties in cases of environmental violations.
- c)To oversee the collection of environmental samples.
- d)To manage the Environmental Protection Fund.
Correct answer is option 'B'. Can you explain this answer?
What is the role of an 'adjudication officer' as per the Environment Protection Act Amendment 2022?
a)
To regulate the pollution control boards.
b)
To determine penalties in cases of environmental violations.
c)
To oversee the collection of environmental samples.
d)
To manage the Environmental Protection Fund.
|
|
BT Educators answered |
The adjudication officer is appointed to assess and impose penalties in cases of environmental violations.
Chapter doubts & questions for Environmental Pollution - Environment & Additional Topics for State PSC Exams 2025 is part of BPSC (Bihar) exam preparation. The chapters have been prepared according to the BPSC (Bihar) exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for BPSC (Bihar) 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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Environment & Additional Topics for State PSC Exams
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