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Q.

Petiole helps in

A. bringing fresh air on to the leaf surface

B. cooling the lamina

C. holding the lamina 

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a

A, B and C are correct

b

Only A and C are correct

c

Only B and C are correct

d

Only A and B are correct

answer is D.

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Detailed Solution

Petiole helps in fluttering the lamina and there by brings fresh air on to the lamina, cools the lamina, directs the lamina towards sunlight and bears the weight of lamna.

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