Question

why does desert plants takes carbon dioxide at night time

Answer 1

Like other green plants, desert plantsalso prepare food by photosynthesis, during which small pores (stomata) on a plant's leaves and stems open to absorb CO₂ from the air. ... To prevent this, the desert plants do not open their pores for carbon dioxide until the sun goes down.

Answer 2

Through the stomatal pores a large amount of gaseous exchange as well as transpiration takes place. As in case of desert plants, to prevent excessive lose of water the stomatal pores are closed in day time. At night when there is no transpiration the stomatal pores open and take in carbon dioxide.

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