Hydrosphere:
This is the sphere of water consisting of surface, ground and ocean water. Seventy-one % of the Earth’s surface is in water. Glaciers and ice caps cover additional areas. Water plays an immense role in the sustainable environment balance of the earth. Water is essential for the industry, transportation, power generation, food production and processing, and the manufacturing sectors of the modern world. Morever, 70% of the body of the organism is constituted by water. The balance of water is maintained through circulation of water in the biosphere is maintained through circulation of water among the atmosphere, lithosphere and hydrosphere by characteristic path ways. The circulation along the characteristic pathways is known as the hydrological cycle.
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