Question

Establish the relationship between transpiration and rainfall.

Answer 1

Plants release water in the form of water vapour through transpiration. When the number of plants found in an area is high, the amount of water present in the atmosphere as part of transpiration will be very high.
This affect the degree of saturation of the air, as the is air mostly saturated. When air currents bring air near to clouds, it becomes fully saturated and come down as rain.
Hence, more transpiration leads more rain fall.