Thursday, 10 May 2012

Pollution

Pollution is the introduction of contaminants into a natural environment.


We can distinguish three different pollution kinds:

  1. Water pollutionSome of the waste from towns, villages or factories is poisonous and end up in rivers and oceans.
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     2.   Air pollutionharmful substances enter the air we breathe.


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     3.   Land pollution: we produce a lot of rubbish, which can pollute the land with dangerous substances for    the soil.












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