1(vi)
Assertion (A): Plants growing in shade tend to have larger leaves.
Reason (R): This is because they need to capture more sunlight for photosynthesis.
- (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).
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Both (A) and (R) are true and (R) is the correct explanation of (A).
Reason — Light intensity is a limiting factor for photosynthesis. Plants growing in shade receive less light, so they develop a larger leaf surface area to trap the maximum amount of the available sunlight.