Question

how does the amount of water vapour in the air affect transpiration

Answer 1

Answer:

Relative humidity: As the relative humidity of the air surrounding the plant rises the transpiration rate falls. It is easier for water to evaporate into dryer air than into more saturated air. Wind and air movement: Increased movement of the air around a plant will result in a higher transpiration rate.

Answer 2

Answer:

it affect transpiration because when water vapour is lower transportation is less like desert plants and when water vapour is high in air it transprents more water so water vapour affect transpiration