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Assertion: Presence of large amounts of ...

Assertion: Presence of large amounts of nutrients in water body causes excessive growth of planktonic algae.
Reason : It is due to biomagnifications

A

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

B

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

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
Presence of large amounts of nutrients in water causes excessive growth of planktonic (free- floating) algae, called an algal bloom which imparts a distinct colour to the water bodies. Algal blooms cause ddeterioration of the water quality and fish mortality. Biomagnification refcrs to increase in concentration of the toxicant at successive trophie levels.
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