Why the number of stomatas present on upper surface of a leaf are comp

1.	Why the number of stomatas present on upper surface of a leaf are comparetively lesson the lower surface of leaf?
Answer» This is because theupper surface of a leafis more exposed to the sun as compared to thelower surface. Hence, to trap maximum sunlight, there is more chlorophyll on theupper surfaceas compared to thelower surface. Transpiration is the loss of water fromleaves, stems, etc. in the form of water vapor.

Why the number of stomatas present on upper surface of a leaf are comparetively lesson the lower surface of leaf?

Answer»

This is because theupper surface of a leafis more exposed to the sun as compared to thelower surface.

Hence, to trap maximum sunlight, there is more chlorophyll on theupper surfaceas compared to thelower surface.

Transpiration is the loss of water fromleaves, stems, etc. in the form of water vapor.