Write about the expansion of water on earth.

1.	Write about the expansion of water on earth.
Answer» Nearly 97% of all the water on the earth is in the oceans, and so only about 3% is freshwater. About 2% of this fresh water is permanently frozen in glaciers and at the polar ice caps. Thus only about 1% is available fresh water. Again about 1/4 of this 1% is present as underground water. Only about 0.009% of water on earth is in the rivers and lakes. Rest is present in the bodies of living organisms, as soil moisture, as humidity of atmosphere, etc. Water is the most essential, abundant substance in living things. The human body, for example, is composed of about 70% of water.

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