Pollution, contamination of Earth's environment with materials that interfere with human health, the quality of life, or the natural functioning of ecosystems (living organisms and their physical surroundings). Although some environmental pollution is a result of natural causes such as volcanic eruptions, most is caused by human activities.

There are two main categories of polluting materials, or pollutants.
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Biodegradable pollutants are materials, such as sewage, that rapidly decompose by natural processes. These pollutants become a problem when added to the environment faster than they can decompose (see Sewage Disposal). Nondegradable pollutants are materials that either do not decompose or decompose slowly in the natural environment. Once contamination occurs, it is difficult or impossible to remove these pollutants from the environment.

Nondegradable compounds such as dichlorodiphenyltrichloroethane (DDT), dioxins, polychlorinated......

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Title: Pollution
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Approximate Pages: 14 (250 words per double-spaced page)

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1. Pollution
   

   Pollution. Pollution has become a major issue over the years. It has ... it.
   If not all, a lot of pollution is caused by humans. There ... ...

2. Pollution
   

   pollution. air pollution is a problem with problems. there are problems. ... air
   pollution is a problem with problems. there are problems. ... ...

3. Water Pollution
   

   Water Pollution. ... Water pollution can also make water unsuited for the desired
   use. The main cause of water pollution is made by humans. ... ...

4. Pollution
   

   pollution. The environmental issue has certainly ... One of the major forms of pollution
   is air pollution. Air pollution is aggravated because ... ...

5. Pollution Trading Credits And Corporate Pollution
   

   Pollution Trading Credits and Corporate Pollution. Pollution trading credits are
   widely used throughout the world by industrialized, developed nations. ... ...