Topics: Pollution, Global warming, Greenhouse gas Pages: 2 (626 words) Published: January 3, 2014
The word, 'pollution' means to make dirty. Pollution causes imbalance in the environment. Environmental pollution is a serious problem. Nearly 35 percent of India's total land area is subject to serious environmental pollution. Industrialization has led to urbanization, which has added to the pollution problem. Air pollution is the most dangerous form of pollution. land and water pollution have worsened the situation. Pollution causes several types of harmful disease so we must control pollution for our survival. Environmental pollution is defined as the unfavorable alteration of our surroundings. Human population explosion, rapid industrialization, deforestation, unplanned urbanization, scientific and technological advancement etc. are the major causes of environmental pollution. In India, all the sources of water like rivers, lakes, ponds and wells have been polluted and are unfit for drinking. As a result of the increased use of fertilizers, the rivers, seas and oceans have become contaminated with harmful pollutants. It is estimated that more than 500 tons of mercury enters the ocean every year. Oil slicks, pollution caused by the flow of industrial waste, sewage and fertilizer have also threatened the aquatic life. Air pollution is the most dangerous form of pollution. It results form gaseous emission from industry, thermal power stations, domestic combustion etc. Due to air pollution, the composition of air is changing all over the world. Most of the gases and air pollutants are produced by burning fuels. Burning of coal produces carbon dioxide, sulphur dioxide etc. which are responsible for acid rain. Chlorofluorocarbons are widely used as propellants and as refrigerants which cause ozone depletion. Water pollution adversely changes the quality of water. It disturbs the balance of the ecosystem and causes health hazards. Water becomes polluted by the presence or addition of inorganic, organic or biological substances. Noise is also one of the...
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