Water harvesting is defined as

A. Application of water at the time of harvesting crops like colocasia, tapioca and yam

B. Harvesting deep water from soils by pumping devices

C. Unit of water applied to crops

D. Collecting the excess run off from rain on the farm in ponds and utilizing it later for agriculture

Answer: Option D

Solution(By Examveda Team)

Water harvesting is rainwater harvesting and is an ancient technique to be used to collect the rainwater through excess runoff on the farm in ponds, or in underground storage tanks to use later for agricultural or domestic purposes.