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How does water pollution impact aquatic ecosystems? - Commercial Applications

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Question

How does water pollution impact aquatic ecosystems?

Options

  • It increases oxygen levels.

  • It disrupts food chains and reduces biodiversity.

  • It has no effect on aquatic life.

  • It enhances fish population growth.

MCQ
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Solution

It disrupts food chains and reduces biodiversity.

Explanation:

Water pollution decreases oxygen levels and introduces toxic substances into aquatic ecosystems. This kills sensitive species, alters food chains, and lowers biodiversity, weakening the equilibrium of aquatic ecosystems.

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Chapter 13: Natural Resources - EXERCISES [Page 159]

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C. B. Gupta Commercial Applications [English] Class 9 ICSE
Chapter 13 Natural Resources
EXERCISES | Q I. 18. | Page 159
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