Question

why plants close stomata when there is no gaseous exchange taking place​

Answer 1

Answer :-

When there is no gaseous exchange taking place then plants close stomata so that it will limit the amount of evaporation from their leaves. In simple words, plants close stomata to prevent water loss.

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• Stomata :- The openings in the epidermis of leaves is known as stomata. Its main function is to help in gaseous exchange.

• Gaseous exchange :- The movement of oxygen and carbon dioxide is known as gaseous exchange.

• Evaporation :- The process in which liquid changes into gaseous state is known as evaporation. Its a slow process. It is a physical which means reversible change.

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Hope it helps you mate :)