Question

how does the exchange of gases take place in plants​

Answer 1

Respiration In Leaves:-

Leaves consist of tiny pores known as stomata. Gaseous exchange occurs through diffusion via stomata. Guard cells regulate each of the stomata. Exchange of gases occurs with the closing and opening of the stoma between the inferior of leaves and the atmosphere.

Answer 2

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with the help of diffusion

and most importantly stomatas

Stomata's guard cells conduct the opening and closing of stomatas