Question

Transpiration will be the fastest when the day is

• A. hot, dry and windy
• B. cool, humid and windy
• C. hot, humid and still
• D. hot, humid and windy

Answer 1

The correct option is A

hot, dry and windy

The correct option is A.

Explanation for the correct option

1. Transpiration is the loss of water from the plants in the form of vapors.
2. This process majorly occurs through the stomata present in the leaves.
3. The rate of transpiration increases with the increase in temperature of the atmosphere, decrease in the humidity of the air, and increase in the wind speed.
4. Thus, during hot, dry, and windy weather, transpiration will be faster.

Explanation for the incorrect options

Option B:

The rate of transpiration will decrease during cool, humid and windy conditions.

Option C:

Still air conditions affect the transpiration rate negatively. Thus, in a hot, humid, and still atmosphere, the rate of transpiration will decrease.

Option D:

During humid conditions, the outer air has enough moisture. Thus, the rate of transpiration decrease during the hot, humid and windy atmosphere.

The transpiration rate will be faster during hot, dry and windy conditions.