Question

what factors contribute to rate of transpiration​

Answer 1

Answer:

Heat of sunlight because when sun rays fall on leaves it release excessive amount of water which is called transpiration

Answer 2

Answer:

There are, however, a number of external factors that affect the rate of transpiration, namely: temperature, light intensity, humidity, and wind. The opening and closing of stomata. Different environmental conditions trigger both the opening and closing of stomata.