Water Pollution

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Water Pollution Water is said to be the cause of the earth. We can say that it is the lifeline of our ecological existence. But the precious gift of the nature which comprises of 70% of the earths surface is not that pure now. Day by day the quality of water is deteriorating and becoming unfit for human consumption. Like air pollution, water pollution can also be described to mean the adverse change in composition or condition of the water such that it becomes less suitable. Ordinarily by pollution, we mean contamination and thus when the water is polluted or contaminated it becomes totally unfit for use. Water can said to be polluted whether by contamination or alteration of its physical, chemical and biological properties or by discharge into it of any sewage or trade effluent or of any other liquid, gaseous or solid substance, whether directly or indirectly, has created or is likely to create a nuisance or has rendered or is likely to render such water harmful or injurious to public health or safety, or to domestic, commercial or industrial, agricultural or other legitimate uses or to the life and health of animals or plants or of aquatic organisms. Thus, from the above it is clear that pollution of water may change the physical, chemical and biological characteristics of water. There are many reasons which are responsible for bringing such change in the composition or quality of water. Some of these include the municipal sewage, the industrial effluents and

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