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

A dam helps in flood control and also for

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

Walls built to hold water back are called

Water gets collected in hallows in the ground using

We cannot live without

Tanks irrigation is mostly practised in

Sea water is

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

 Kashmir valley and the Brahmaputra valley are located in