Mention the two ways in which transpiration helps the plants.

Transpiration helps the plants in the following two ways —

1. Cooling the plant — The heat utilized when water is transpired from the surface of leaves in the form of water vapour induces a cooling effect.
2. Transpiration helps in maintaining the concentration of the sap inside the plant body — The roots continue to absorb water from the soil. If excess water is not evaporated out, the sap would then become dilute, preventing further absorption of water along with the minerals required by the plant.