Give reason:
Transpiration is lower on a humid day.

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Solution

Explanation:
Transpiration-
Transpiration is the loss of water in the form of water vapor from the aerial parts of the plants.
Transpiration is affected by various factors like temperature, sunlight, wind, humidity, etc
Reason-
On a humid day, air already contains moisture i.e. it is already laden with water molecules.
Transpiration is reduced when the air is humid as air cannot hold any water molecules.
Therefore, Transpiration is lower on a humid day.

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Similar questions

Which of the following statements are true and which ones are false? Give reason in support of your answer.

(a) Potometer is an instrument used for demonstration of transpiration occurring from the lower surface of a leaf.

(b) Hydathodes are similar to stomata in plant physiology.

(d) Some desert plants have sunken stomata on their leaves.

(e) Most transpiration occurs during midday.

Give suitable explanation for the following :

(a) A higher rate of transpiration is recorded on a windy day rather than on a calm day.

(b) Excessive transpiration results in the wilting of the leaves.

(d) More transpiration occurs from the lower surface of a dorsiventral leaf.

(e) Cork and bark of trees help in preventing loss of water.

(f) Perspiration and transpiration help to cool the body temperature of the organism.

(g) On a bright sunny day, the leaves of certain plants roll up.

Give the reason:

Transpiration is important for plants.

Give reasons for the following:

The rate of transpiration is more on a bright sunny day than a cloudy day.

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

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