Water contamination leads to death of aquatic species because:

it lowers the pressure of water

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it purifies the water

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it decreases the temperature of water

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contaminated water contains bacteria

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Solution

The correct option is D
contaminated water contains bacteria

Aquatic animals and plants use dissolved oxygen in the water. The wastes dumped into rivers and ponds decay using the oxygen dissolved in them. This depletes the amount of oxygen and results in the destruction of aquatic life.

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