Transpiration is a necessary evil in plants. Explain.
Ans.
Many processes in plants are regulated and dependant on the process of transpiration, such as the ascent of sap. The plant functions are dependent on this process and regulate the growth of plants, especially tall plants. The process helps in the loss of water through the form of water vapour and regulate the water level, but sometimes can lead to an excess loss, thus creating a shortage. Thus there is less water available for photosynthesis, and most of it is lost through transpiration. Thus in some, the process is very necessary, but on the other hand, it also causes certain issues, thus making it a necessary evil.