Transpiration is a necessary evil. It is necessary..understood...but how it is an evil?
Transpiration is considered to be a necessary or unavoidable evil because it
- Creates transpirational pull for transport
- Supplies water for photosynthesis
- Transports minerals from soil to all parts of a plant
- Cools the surface of the leaves (due to the evaporation of water)
- Keeps the cells turgid; hence, maintains their shape