Briefly explain how the rate of transpiration is affected by Humidity of the atmosphere.

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Solution

The humidity of the atmosphere:- Transpiration is reduced if the air outside is humid. High humidity in the air reduces the rate of outward diffusion of the internal water vapour across stomata, thereby reducing the rate of transpiration.

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Briefly explain how the rate of transpiration is affected by

(a) Intensity of light

(b) Humidity of the atmosphere.

Compared to a dry day, how would the rate of transpiration be affected on a humid day?

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