Question

I. Multiple Choice Questions
Choose the correct option.
Which of the following is a major source of water pollution?
(a) Sulphur dioxide
(b) Nitrogen oxide
(c) DDT
(d) Hydrogen oxide

Answer 1

Hydrogen Dioxide is the major source of water pollution.

Answer 2

Major source of water pollution is DDT.

Explanation:

1. DDT is actually an insecticide which the farmers use to protect the crops and plants from the attack of insects.

2. DDT is an organic pollutant which mainly causes pollution of water.

3. This chemical is made by humans and is not found in environment naturally.

4. It is absorbed by soil very fast causing affect to organisms and useful microorganisms.

5. DDT pollutes the aquatic bodies like rivers, lakes, ponds, etc, which harms or may even kill the aquatic animals living there.

6. Rate of bio-accumilation of DDT is high in water bodies. Therefore, its long time exposure to aquatic plants and animals is threatening for them.

7. Therefore, the correct choice to the asked question is Option C.

Causes of water pollution:

https://brainly.in/question/861069

Pollution in Ganga and Yamuna river:

https://brainly.in/question/6701703

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