Transpiration is the manifestation of

Which of the following theories provides the latest explanation for the closure of stomata?

Which of the following theories is not related to the opening of stomata?

Wilting and curling of leaves occur due to which factor?

Describe: Transpiration.

Generally,stomata are found on the lower surface of a leaf. Thus,the approximate percentage of transpiration through the abaxial surface is: (in $\%$)