Water is a compound with the chemical formula H2O. It is a molecule of oxygen and hydrogen formed by covalent bond . It exists in the form of solid, liquid, ice and gas. 70.9% of the Earth's surface is covered with water, and is vital for all known forms of life.
You can also look up the facts about water pollution.
Some of the uses of water are explained below:
Water helps earth’s climate from getting too cold or too hold. Land absorbs as well as releases heat quickly from the sun. But the ocean release as well as absorbs heat slowly from the sun. So gentle wind comes from the oceans and gives warmth to the land during winter as well as coolness during summer.
To get rain people worshiped rain gods as well as prayed for rain. Often, when there is no rain, crops withered and starvation started. Sometimes the rain falls too heavily or too suddenly. At this time rivers overflowed and cause massive property destruction.
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