Question

Why the number of somatas present on upper surface of a leaf are comparatively less than on lower surface of leaf

Answer 1

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Q) Why the number of stomatas present on upper surface of a leaf are comparatively less than on lower surface of leaf?

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A)

• One of the main processes that stomata carries out is transpiration in which water vapour escapes to the atmosphere through the pores present in the leaf surface

• the number of stomata in the upper surface is more to increase the rate of transpiration as the process will not be effective when carried out by stomata in lower surface of leaf, so the umber of stomata in upper surface is more than lower surface.

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