Botany-(general)

NEET Botany (general) Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 11

Assertion (A): Algae play a significant role in the fixation of carbon dioxide on Earth. | Reason (R): Algae are primary producers in aquatic food cycles and increase dissolved oxygen levels.

A

Both A and R are true, and R is the correct explanation of A.

B

Both A and R are true, but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

Algae fix at least half of the total carbon dioxide on Earth through photosynthesis and are primary producers in aquatic ecosystems, as mentioned in the NCERT context.

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