Question

Give reasons:
(i)
The number of stomata are more on the lower surface of the leaf as
compared to the upper surface.​

Answer 1

Answer:

All surfaces of the leaf have some amount of stomata for regulating gas exchange for photosynthesis. However, the lower epidermis (the underside of the leaf) has more, because it is more often in the shade and so it is cooler, which means evaporation won't take place as much.

Answer 2

Answer:

●this isbecause it is more often in shade and so it is cooler because of that less evaporation takes place.