Question

Assertion (A): Abscisic acid promotes stomatal closure during a drought.
Reason (R): Abscisic acid helps the plant to conserve water during stress.

• A. (A) is true and (R) is false
• B. (A) is false and (R) is true
• C. Both (A) and (R) are true and (R) is the correct explanation of (A)
• D. Both (A) and (R) are true but (R) is not the correct explanation of (A)

Hint:

Abscisic acid plays a vital role in regulating plant responses to drought by promoting stomatal closure, which reduces water loss through transpiration. This is an important adaptation for conserving water during periods of stress.

Answer 1

The Correct Option is C