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Reproduction In Organisms

Question
CBSEENBI12003482
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Assertion: Algal blooms are formed in nutrientless water.

Reason: Algal blooms in water turn it unfit for human consumption, but cause enormous growth of fish.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false.

Solution

D.

If both assertion and reason are false.

Algal blooms are a result of eutrophication. Eutrophication involves change in biological
productivity and nutrient content of a water body. They are harmful for both humans and aquatic
organisms. Eutrophication results in higher BOD and reduced dissolved oxygen in water body.
It causes death of fish and other aquatic animals.

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