Question

who termed," transpiration is a necessary evil"?

Answer 1

Heya....The loss of excees water in the form of vapor from the aerial parts of the plant is known as transpiration. Transpiration is essential for the movement of water and minerals from the root to the healthy parts of the plant. But excess transpiration may result in drying up of the leaves or wilting and loss of soil water. Hence it is termed as a necessary evil.