AP BIOLOGY

Detailed explanation-1: -The correct option is A transpiration. Transpiration is the process by which water is lost in the environment through evaporation. It helps in removing excess water as well as cooling down the plant.

Detailed explanation-2: -Transpiration is a process that involves loss of water vapour through the stomata of plants. The loss of water vapour from the plant cools the plant down when the weather is very hot, and water from the stem and roots moves upwards or is ‘pulled’ into the leaves.

Detailed explanation-3: -Transpiration occurs when plants take up liquid water from the soil and release water vapor into the air from their leaves.

Detailed explanation-4: -Most of the transpiration in plants occurs through foliar surface or the surface of leaves. Transpiration through leaves is known as foliar transpiration.