NEET BIOLOGY

Detailed explanation-1: -The rate of transpiration Increases with the intensity of sunlight, high temperature, dry air, the velocity of wind, the high water content of the leaf. The rate of transpiration decreases with the closure of stomata, high humidity, high atmospheric carbon dioxide level, the low water content of leaf, shedding of leaf.

Detailed explanation-2: -As the relative humidity of the air surrounding the plant rises the transpiration rate decreases. It is easier for water to evaporate into dryer air than into more saturated air. Increased movement of the air around a plant will result in a higher transpiration rate.

Detailed explanation-3: -With increasing humidity, the rate of transpiration decreases linearly, because the high saturation of water vapour in the atmosphere prevents the evaporation of more water from the leaf interior to the exterior.

Detailed explanation-4: -(b) Rate of evaporation of an aqueous solution decreases with increase in humidity.