Which of the following pollution involves eutrophication?

Water pollution

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Noise pollution

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Air pollution

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None of the above

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Solution

The correct option is A Water pollution
Eutrophication is when a water body is induced by unnecessary growth of algae. Eutrophication results in declining the quality of water and in reducing dissolved oxygen in water bodies. Eutrophication is divided into two types - natural and cultural.
Example, addition of excessive fertilizers to the fields will lead to their accumulation into a nearby water body during run-offs
So, the correct answer is 'Water pollution'

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Q4. Consider the following statements about Light pollution:

1. Light pollution, also known as photo-pollution, is the presence of anthropogenic light in the night environment.

2. Its negative impacts include increasing energy consumption and disrupting the ecosystem and wildlife.

3. Frequent use of LED technology increases light pollution

Which of the above statements are correct?

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