Water is a liquid substance. It is a combination of oxygen and hydrogen. It is a principal element of our environment. No living being can live without water. So, water is called life. It has no color, shape, smell and taste. Water takes the color and shape of its container. It always flows downwards. We get water from rains, tube - wells, ponds, lakes, canals, seas, rivers and oceans The main source of water is the rain. We bathe and wash our clothes in water. Water is very essential for our agriculture, mills and factories. Besides, trees and plants cannot grow without water. But impure water is very harmful to health and environment. So we should not pollute water for our greater interest. We should always drink safe water for our sound health.