Abstract

                                Water is essential for every living being. It has become an essential raw material also. No farm produce can be made without water. There is no power generation, thermal or hydel, without water. There is no industry which does not use water. For example, petroleum refineries requirie 770 gallons of water for every barrel of petroleum refined; steel plants require 65,000 gallons of water for every ton of steel they turn out; synthetic rubber manufacturing concerns use 600,000 gallons of water for every ton of synthetic rubber they produce. A quantity of 1.25 million gallons of water is required to irrigate one acre of paddy crop.

Key words :