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Environmental pollution refers to the introduction of harmful pollutants into the environment. The major types of environmental pollution are air pollution, water pollution, noise pollution, thermal pollution, soil pollution and light pollution. Deforestation and hazardous gaseous emissions also leads to environmental pollution.
As more and more people move into cities and towns, a number of factors cause pollution: 1  the physical disturbance of land due to construction of houses, industries, roads, etc.; 2  chemical pollution from industries, mines, etc.; 3  inadequate sewage collection and treatment; 4  increase in fertilisers to grow more food. 5  litter, which causes disease and ...