Small channels are dug to take water from rivers to the fields are called

Farmers for irrigating their fields depend on

Walls built to hold water back are called

We cannot live without

Which type of irrigation is widely practised in Punjab, Haryana, Uttar Pradesh and Gujarat?

Which one of the following is the main source of water?

Which one of the following is not used for drinking and agriculture?

A dam helps in flood control and also for

Dam water is mainly used to generates

 Kashmir valley and the Brahmaputra valley are located in