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Which of the following ultimately causes oxygen depletion in water bodies?

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Question

Which of the following ultimately causes oxygen depletion in water bodies?

Options

  • Fish

  • Human beings

  • Microorganisms

  • None of these

MCQ
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Solution

Microorganisms

Explanation:

Microorganisms break down organic waste in water. This process uses dissolved oxygen, which can leave less oxygen for aquatic life.

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Chapter 16: Pollution - EXERCISE [Page 310]

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Lakhmir Singh Biology [English] Class 10 ICSE
Chapter 16 Pollution
EXERCISE | Q 6. | Page 310
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