User talk:ASHOK DESHMUKH 1957

Earth has got earth many ups and downs. Imagine a perfectly sperical earth.Here all the water will be uniformly get distributed on earth and continue to percolate in the soil. And in that case only aquatic life would have been possible.So because of deeps on earth, you have oceans.Here the very large reservoir of water hold the enery from sun and much is consumed in evaporation of water.So you have a clouds of water vapor.Though most of the rain fall occurs on oceans only, it rains on mountains as well. Now forests on mountains has a great advantage that roots and hair roots of trees hold the soil tightly and at the same time make it porous also. So as it rains, specially continuous dribling of rain bye time to percolate the water deep and deep inside the soil. So here soil acts as a synthetic sponge. It absorb lot of water, when it rains. And give away water slowly,through out the year.So it act as a buffer, preventing floods when it rains and there after provide the constant sourse of water to rivers.So mountains give water supply to rivers through out the year. May be less when further from rainfall. If forest is on planes, then it will not allow the water to flow unless under ground water reservoir gets full. From such area you may have undergroun rivers flowing. From dence forests, even on rainy season, there is clear water flow. If soil is washed from hills then dams built on rivers will have less capacity to store the water. And in due course of time they will be full of soil or mud and it will no longer hold the water. When forest are cut, the soil wash away and the stones are exposed. Stones donot hold the water and and when it rains, there are floods and next day you have no water. So forests provide source of water to both. Underground water and to rivers.(The containts to be edited by expert in English as the contributor's English is poor.)