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All questions of Environment Issues and Health Effects for UPSC CSE Exam
What condition is caused by prolonged exposure to silica dust?- a)Lead poisoning.
- b)Silicosis.
- c)Asbestosis.
- d)Emphysema.
Correct answer is option 'B'. Can you explain this answer?
What condition is caused by prolonged exposure to silica dust?
a)
Lead poisoning.
b)
Silicosis.
c)
Asbestosis.
d)
Emphysema.
 | Knowledge Centre answered |
Silicosis is a lung disease caused by the inhalation of silica dust, leading to inflammation and scarring of lung tissue. It is a significant occupational hazard in industries that work with silica.
What is a significant health risk associated with methyl mercury?- a)It improves cognitive functions.
- b)It can cause fatal poisoning.
- c)It enhances muscle strength.
- d)It reduces inflammation.
Correct answer is option 'B'. Can you explain this answer?
What is a significant health risk associated with methyl mercury?
a)
It improves cognitive functions.
b)
It can cause fatal poisoning.
c)
It enhances muscle strength.
d)
It reduces inflammation.
| | Knowledge Centre answered |
Methyl mercury is highly toxic, and exposure can lead to fatal poisoning. It accumulates in aquatic food chains, posing significant risks to humans who consume contaminated fish.
What type of pollutants are BHC, PCB, and DDT classified as?- a)Biodegradable pollutants.
- b)Persistent organic pollutants.
- c)Heavy metals.
- d)Radioactive substances.
Correct answer is option 'B'. Can you explain this answer?
What type of pollutants are BHC, PCB, and DDT classified as?
a)
Biodegradable pollutants.
b)
Persistent organic pollutants.
c)
Heavy metals.
d)
Radioactive substances.
| | Knowledge Centre answered |
BHC, PCB, and DDT are classified as persistent organic pollutants (POPs) because they do not easily degrade in the environment, leading to long-term ecological impacts.
What is the main health effect of DDT on hormones?- a)It enhances estrogen activity.
- b)It depresses estrogen and testosterone activity.
- c)It has no effect on hormones.
- d)It promotes testosterone production.
Correct answer is option 'B'. Can you explain this answer?
What is the main health effect of DDT on hormones?
a)
It enhances estrogen activity.
b)
It depresses estrogen and testosterone activity.
c)
It has no effect on hormones.
d)
It promotes testosterone production.
| | Knowledge Centre answered |
DDT has been shown to depress the activity of estrogen and testosterone, leading to potential reproductive issues in wildlife and humans. This highlights the need for careful monitoring of pesticide use.
What is the primary reason for the toxicity of transfats?- a)They are derived from natural oils.
- b)They promote heart disease and other serious health issues.
- c)They are rich in vitamins.
- d)They enhance metabolism.
Correct answer is option 'B'. Can you explain this answer?
What is the primary reason for the toxicity of transfats?
a)
They are derived from natural oils.
b)
They promote heart disease and other serious health issues.
c)
They are rich in vitamins.
d)
They enhance metabolism.
| | Knowledge Centre answered |
Transfats are linked to numerous serious health problems, including heart disease, diabetes, and cancer. Their consumption is a significant public health concern, leading to regulatory measures in food labeling.
What is the primary effect of mercury on aquatic life?- a)It improves reproduction rates.
- b)It causes fatal poisoning.
- c)It enhances growth.
- d)It has no effect on aquatic organisms.
Correct answer is option 'B'. Can you explain this answer?
What is the primary effect of mercury on aquatic life?
a)
It improves reproduction rates.
b)
It causes fatal poisoning.
c)
It enhances growth.
d)
It has no effect on aquatic organisms.
| | Knowledge Centre answered |
Mercury is extremely toxic to aquatic life, leading to fatal poisoning. Its presence in water bodies poses a significant risk to both wildlife and humans through bioaccumulation.
Which disease is caused by exposure to cadmium?- a)Itai-itai disease.
- b)Pneumoconiosis.
- c)Emphysema.
- d)Sick Building Syndrome.
Correct answer is option 'A'. Can you explain this answer?
Which disease is caused by exposure to cadmium?
a)
Itai-itai disease.
b)
Pneumoconiosis.
c)
Emphysema.
d)
Sick Building Syndrome.
| | Knowledge Centre answered |
Itai-itai disease is a documented case of mass cadmium poisoning, leading to severe health effects, including kidney failure and softened bones. This case highlights the dangers of industrial pollution.
What is the consequence of Iodine-131 exposure in children?- a)Increased bone density.
- b)Severe damage to the thyroid gland.
- c)Improved cognitive function.
- d)Enhanced immune response.
Correct answer is option 'B'. Can you explain this answer?
What is the consequence of Iodine-131 exposure in children?
a)
Increased bone density.
b)
Severe damage to the thyroid gland.
c)
Improved cognitive function.
d)
Enhanced immune response.
| | Knowledge Centre answered |
Iodine-131 exposure, especially among children, leads to serious damage to the thyroid gland. This is concerning because the thyroid plays a crucial role in regulating metabolism and growth.
What is a significant concern associated with energy drinks?- a)They contain no caffeine.
- b)They are marketed as instant energy sources.
- c)They are always safe to consume.
- d)They do not affect hydration.
Correct answer is option 'B'. Can you explain this answer?
What is a significant concern associated with energy drinks?
a)
They contain no caffeine.
b)
They are marketed as instant energy sources.
c)
They are always safe to consume.
d)
They do not affect hydration.
| | Knowledge Centre answered |
Energy drinks are often marketed as instant energy sources, which can be misleading. The high caffeine content raises concerns about potential health risks, especially with excessive consumption.
What is the primary focus of eco-toxicology?- a)The study of economic impacts of pollution.
- b)The effects of released pollutants on the environment and biota.
- c)The examination of human health effects from industrial processes.
- d)The analysis of climate change on wildlife populations.
Correct answer is option 'B'. Can you explain this answer?
What is the primary focus of eco-toxicology?
a)
The study of economic impacts of pollution.
b)
The effects of released pollutants on the environment and biota.
c)
The examination of human health effects from industrial processes.
d)
The analysis of climate change on wildlife populations.
| | Knowledge Centre answered |
Eco-toxicology primarily examines the effects of released pollutants on the environment and the living organisms that inhabit it. This field provides valuable insights into biological damage caused by various pollutants, helping to assess the overall health of ecosystems.
What is the LD50 value used to measure?- a)The effectiveness of a drug.
- b)The lethal dose of a substance that kills 50% of test subjects.
- c)The amount of a nutrient required for health.
- d)The safe level of environmental toxins.
Correct answer is option 'B'. Can you explain this answer?
What is the LD50 value used to measure?
a)
The effectiveness of a drug.
b)
The lethal dose of a substance that kills 50% of test subjects.
c)
The amount of a nutrient required for health.
d)
The safe level of environmental toxins.
| | Knowledge Centre answered |
LD50 is a standard measure of acute toxicity, indicating the lethal dose required to kill 50% of a test population. It helps assess the danger posed by various chemicals.
Which health issue is commonly associated with fluoride intake?- a)Dental fluorosis.
- b)Bone cancer.
- c)High blood pressure.
- d)Improved vision.
Correct answer is option 'A'. Can you explain this answer?
Which health issue is commonly associated with fluoride intake?
a)
Dental fluorosis.
b)
Bone cancer.
c)
High blood pressure.
d)
Improved vision.
| | Knowledge Centre answered |
Dental fluorosis is a common problem resulting from excessive fluoride intake, leading to discoloration and damage to teeth. It underscores the importance of monitoring fluoride levels in drinking water.
Which disease is associated with high nitrate levels in groundwater?- a)Minamata disease.
- b)Blue baby syndrome.
- c)Yokkaichi asthma.
- d)Asbestosis.
Correct answer is option 'B'. Can you explain this answer?
Which disease is associated with high nitrate levels in groundwater?
a)
Minamata disease.
b)
Blue baby syndrome.
c)
Yokkaichi asthma.
d)
Asbestosis.
| | Knowledge Centre answered |
Blue baby syndrome arises from high nitrate contamination in groundwater, leading to reduced oxygen-carrying capacity of hemoglobin in infants. This can be life-threatening if not addressed.
Which of the following is a common symptom of lead poisoning?- a)Increased energy levels.
- b)Gastrointestinal distress.
- c)Enhanced bone growth.
- d)Improved memory.
Correct answer is option 'B'. Can you explain this answer?
Which of the following is a common symptom of lead poisoning?
a)
Increased energy levels.
b)
Gastrointestinal distress.
c)
Enhanced bone growth.
d)
Improved memory.
| | Knowledge Centre answered |
Gastrointestinal distress is one of the most common symptoms of lead poisoning, particularly in industrial workers. Lead can severely affect multiple organ systems and lead to various health issues.
What does the term 'bio-magnification' refer to?- a)The increase in size of organisms in a polluted environment.
- b)The accumulation of toxins in organisms as they move up the food chain.
- c)The process of detoxifying pollutants in the environment.
- d)The decrease in biodiversity due to pollution.
Correct answer is option 'B'. Can you explain this answer?
What does the term 'bio-magnification' refer to?
a)
The increase in size of organisms in a polluted environment.
b)
The accumulation of toxins in organisms as they move up the food chain.
c)
The process of detoxifying pollutants in the environment.
d)
The decrease in biodiversity due to pollution.
| | Knowledge Centre answered |
Bio-magnification refers to the accumulation of toxins in organisms as they ascend the food chain. This often results in higher concentrations of harmful substances in top predators, including humans.
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