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Environmental pollution is defined as any undesirable change in physical, chemical and biological characteristics of air, land and water. Environmental problem is known to exist in developed as well as developing countries and the problem is gradually growing day by day since the onset of industrial revolution. Population explosion and urbanization have made excess use of natural resources and natural wealth and have resulted in nature’s dreadful conditions. Pollution can be natural as well as man-made. The agents or substances that cause pollution are known as pollutants. Pollution is causing a lot of harm to human and animal health, plants and trees as well as the wider environment and has harshly affected the entire ecosystems and has disrupted the marine life in lakes and streams and has in major effect cause depletion of the natural flora and fauna.
Due to advancement in man’s knowledge, man started cutting down forests for construction of buildings for making paper and for growing food like food grains and oilseeds. Since then all the waste accumulated during the course of construction of these buildings has caused serious damages in pollution and in depletion of natural resources. Air pollution occurs when the air contains gases, dust, fumes or odor in harmful amounts. That is, amounts which could be harmful to the health or comfort of humans and animals or which could cause damage to plants and materials. The effects of water pollution are varied and depend on what chemicals are dumped and in what locations. The water is filled with toxic waste and sewage, and routinely receives more waste when rainfall pushes it into the harbor. Outdoor lighting has become a necessary integral part of society. Light pollution is a by-product of outdoor lighting. Light pollution can be reduced by lighting only what is actually needed, when it is needed, and to the appropriate level. This publication discusses the three elements of light pollution, which are sky glow,...
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