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Water cycle

Posted by Shiva Ramtel Thursday, September 30, 2010

Water is essential for all living beings. Water affect the structure ,situation and working mechanisms of the ecological system . land surface and underground water source are important in order to maintain the water cycle .
Solar energy affect the various process of water flow in the nature .Evaporation takes place from rivers ,pond,lake ,tea,Himalayas etc.Due to the solar energy water level of pond ,lake,sea is decreased in winter due to evaporation .
Underground water is absorbed by the plants .Water is lost from plants through the stomata of leaves in the transpiration process and mixes into the atmosphere .On this way the water used by plants is continuously vaporized in nature .SimilarlyWater cycle animals also take water in the form of food .The water taken in this way is thrown out in the environment in the forms of Verina sweat .The minute water droplets thrown in the atmosphere again combine with each other and form cloud .Small droplets of water in the cloud combine which fall on the earth form of rain .Major part of the rain water flows into the river ,streams ,lake,sea,ponds etc. Water in the forms of snow ,hail,frost etc . starts to melt and gradually converted into liquid due to solar energy .The water found on the earth surface also enters into the underground through the porous parts or holes of low lying area in thew form of natural springs . Evaporation again takes place from different sources of water and goes to the atmosphere . Thus water cycle is maintained in nature .Water cycle is necessary in order to maintain the ecosystem in nature . Activities like deforestation decreasing dry land ,increasing residential area in lowland marshy area in lowland marshy places ,land filling work on marshy places and similar other activities effect . It also hampers to maintain the ecosystem.

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