1(iii)
Assertion (A): A thick cuticle reduces transpiration by acting as a barrier.
Reason (R): Desert plants have large, thin leaves for transpiration.
- (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 and (R) is not the correct explanation of (A).
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(A) is true and (R) is false
Reason — A thick cuticle helps to reduce transpiration because it forms a protective, waxy barrier on the leaf surface and reduces water loss. Therefore, Assertion (A) is true.
The Reason (R) is false because desert plants do not have large, thin leaves. They usually have small leaves or leaves modified into spines to reduce water loss through transpiration.
Therefore, (A) is true and (R) is false.