Which of the following is NOT the reason for water pollution in our country?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Combustion of coal
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Decomposition of plants and animals releases organic matter into water, causing pollution.
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Industrial wastes often contain chemicals and toxins that pollute rivers and lakes.
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Domestic wastes like sewage and detergents also lead to water pollution.
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Combustion of coal, however, mainly causes air pollution (through release of CO₂, SO₂, NOx, and particulate matter).