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The disappearance of the plants and animals is due to the _________ in water.

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The disappearance of the plants and animals is due to the _________ in water.

(a) Nitrogen depletion

(b) Chlorine depletion

(c) Oxygen depletion

(d) Ozone depletion

I got this question in class test.

I need to ask this question from Types of Water Pollutants and Effects in portion Water of Applied Chemistry

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Correct answer is (c) Oxygen depletion

Explanation: The disappearance of the plants and animals is due to the depletion of the oxygen in the water. Micro organisms mainly bacteria uses the organic matter in water as food.

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