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Water pollution is
A. Addition of undesirable substances into water bodies
B. Removal of desirable substances from water
C. Change of temperature
D. Addition of desirable substance into water
B. Removal of desirable substances from water
C. Change of temperature
D. Addition of desirable substance into water
- a)(a), (b) and (c) are correct
- b)(b) and (c) are correct
- c)(a) and (b) are correct
- d)All of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Water pollution isA. Addition of undesirable substances into water bod...
Understanding Water Pollution
Water pollution refers to the contamination of water bodies, which can have detrimental effects on aquatic ecosystems, human health, and the environment. To clarify why option A is the correct answer, let’s examine each option:
Option A: Addition of undesirable substances into water bodies
- This is the primary definition of water pollution. It involves the introduction of harmful chemicals, toxins, or waste materials into bodies of water such as rivers, lakes, and oceans.
- Examples include industrial waste, agricultural runoff, sewage, and plastic debris. These substances can severely affect water quality and aquatic life.
Option B: Removal of desirable substances from water
- While removing desirable substances can impact water quality, it is not the direct definition of water pollution. This action may lead to ecological imbalance but does not inherently define pollution itself.
Option C: Change of temperature
- Changes in temperature, often due to thermal pollution from industrial discharges, can affect aquatic ecosystems. However, it is not a direct addition of pollutants and thus does not fit the definition of water pollution.
Option D: Addition of desirable substances into water
- Adding beneficial substances, such as nutrients, can sometimes improve water quality but can also lead to problems like eutrophication. Yet, this action does not constitute pollution.
Conclusion
In summary, the correct interpretation of water pollution is primarily the addition of harmful substances into water bodies (option A). While other factors can affect water quality, they do not define water pollution itself.
Water pollution refers to the contamination of water bodies, which can have detrimental effects on aquatic ecosystems, human health, and the environment. To clarify why option A is the correct answer, let’s examine each option:
Option A: Addition of undesirable substances into water bodies
- This is the primary definition of water pollution. It involves the introduction of harmful chemicals, toxins, or waste materials into bodies of water such as rivers, lakes, and oceans.
- Examples include industrial waste, agricultural runoff, sewage, and plastic debris. These substances can severely affect water quality and aquatic life.
Option B: Removal of desirable substances from water
- While removing desirable substances can impact water quality, it is not the direct definition of water pollution. This action may lead to ecological imbalance but does not inherently define pollution itself.
Option C: Change of temperature
- Changes in temperature, often due to thermal pollution from industrial discharges, can affect aquatic ecosystems. However, it is not a direct addition of pollutants and thus does not fit the definition of water pollution.
Option D: Addition of desirable substances into water
- Adding beneficial substances, such as nutrients, can sometimes improve water quality but can also lead to problems like eutrophication. Yet, this action does not constitute pollution.
Conclusion
In summary, the correct interpretation of water pollution is primarily the addition of harmful substances into water bodies (option A). While other factors can affect water quality, they do not define water pollution itself.
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Water pollution isA. Addition of undesirable substances into water bod...
Water Pollution: Detailed Explanation
Water pollution refers to the contamination of water bodies, such as rivers, lakes, oceans, and groundwater, by the addition of undesirable substances. It has several negative impacts on the environment, human health, and aquatic life. The correct option is A, as it includes all the correct statements about water pollution.
Here is a detailed explanation of each option:
A. Addition of undesirable substances into water bodies:
- This refers to the introduction of harmful substances, such as chemicals, heavy metals, pesticides, fertilizers, sewage, and industrial waste, into water bodies.
- These substances can come from various sources, including industrial discharge, agricultural runoff, domestic sewage, and improper waste disposal.
- Water pollution occurs when these substances exceed the natural capacity of the water body to degrade, dilute, or absorb them, leading to adverse effects on the ecosystem and human health.
B. Removal of desirable substances from water:
- This option is incorrect, as water pollution is not about the removal of desirable substances.
- Water pollution focuses on the addition of harmful substances rather than the removal of beneficial ones.
C. Change of temperature:
- This option is incorrect, as water pollution is not specifically related to changes in temperature.
- While temperature changes can affect aquatic ecosystems, it is not the primary focus of water pollution.
D. Addition of desirable substance into water:
- This option is incorrect, as water pollution is concerned with the addition of undesirable substances rather than desirable ones.
- The addition of desirable substances, such as clean water or essential nutrients, would not be considered pollution.
In conclusion, water pollution involves the addition of undesirable substances into water bodies, such as rivers, lakes, and oceans. It is caused by human activities and has detrimental effects on the environment and living organisms. It is crucial to take measures to prevent water pollution and promote the conservation and sustainable use of water resources.
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Water pollution isA. Addition of undesirable substances into water bodiesB. Removal of desirable substances from waterC. Change of temperatureD. Addition of desirable substance into watera)(a), (b) and (c) are correctb)(b) and (c) are correctc)(a) and (b) are correctd)All of theseCorrect answer is option 'A'. Can you explain this answer?
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Solutions for Water pollution isA. Addition of undesirable substances into water bodiesB. Removal of desirable substances from waterC. Change of temperatureD. Addition of desirable substance into watera)(a), (b) and (c) are correctb)(b) and (c) are correctc)(a) and (b) are correctd)All of theseCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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