Question

how does transpirataion cools the plant explain

Answer 1

Transpiration helps plants to cool by giving out the water in the form of water vapour and helps plants to keep itself and its surroundings cool.

Answer 2

Transpiration is the act or process of transpiring; specif., the giving off of moisture, etc. through the pores of the skin or through the surface of leaves and other parts of plants. So water evaportaes from the plant body it leaves cooling effect