Khadins are used in Rajasthan to:(a) hold water for irrigation (b) recharge groundwater(c) promote soil erosion (d) trap wild animals

Correct Answer: (a) hold water for irrigation

Explanation:

 Khadin is an inside construction designed with an aim to harvest surface runoff water for agriculture. It works on the principle of harvesting rainwater on farmland that is to be used for crop production.