The main source of fresh water is _________

Most of the water on earth is in the oceans and _________

There are _________ major sources of irrigation in India.

India get plenty of rainfall from the _____________

In towns and cities, water is supplied to houses through ________.

__________ was the ancient system of irrigation in India.

_____________ water is the cheapest and quickest available water source.

__________ flows mostly streams and rivers.

The electricity produced by the force of falling water from the dam is called _________

___________ is the backbone of modern development.