of fractional distillation to yield a number of commercially important products such as petrol, diesel oil and tar. The effect of water pollution varies from place to place upon the type and amount of water contamination. Water pollution may be defined as any chemical or physical change in water detrimental to living best executive cv writing services organisms.
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High level of water pollution is done due to the essay on hardwork is a key to success chemicals coming out of the agricultural usage of fertilizers, insecticides and pesticides. It maintains the ecological balance in the biosphere. In the hilly portion of Kulu Valley of Himachal Pradesh, water level of river Vyas has degenerated from A level to B level, though Manali is a famous tourist place of Kulu Valley. These may be discharged directly into watercourses by sewers or pipes from factories or be washed down from agricultural or urban areas particularly after heavy rains. Our civilization and development is connected with this river basin. A, B, C, D and. Vast areas of Haryana, Rajasthan and Punjab are highly contaminated with fluoride compounds in potable water. In the name of making Ganga pollution free, hundreds of crores of rupees were wasted in the polluted water of the river, also starting economic pollution. All the pollutants are very harmful to the environment. However biochemical oxygen is the demanded oxygen by the aerobic micro-organisms to oxidize organic matters of wastes. During the first phase of Ganga Action Plan, 261 schemes involving an expenditure of 462 crores were undertaken in Uttar Pradesh, Bihar and West Bengal. According to this plan around 120 factories were identified in 27 cities spreading pollution to a great extent from Haridwar to Hooghly.
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