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Question

Water pollution can be potentially harmful to aquatic life. What are the various sources of water pollution?


A

Sewage waste

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B

Chlorination of water

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C

Industrial waste

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D

Automobiles

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Solution

The correct options are
A

Sewage waste


C

Industrial waste


The main reasons for water contamination are the wastes from industries and the sewage. Industrial waste includes any material that is rendered useless during a manufacturing process such as that of factories, industries, mills, and mining operations. Sewage waste includes household waste and waste from local businesses.

Chlorination of water helps it in purifying it. Chlorine kills various pathogens like bacteria and viruses present in them.

Automobiles directly do not cause water pollution.


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