air pollutionby | 27-07-2013 19:17 |
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Air is simply the mixture of gases. The oxygen we breathe in comes from the air that is surrounding us. This air needs to be clean and pure otherwise if we take in impure air then would lead to number of diseases.Air pollution is the introduction into the atmosphere of chemicals, particulates, or biological materials that cause discomfort, disease, or death to humans, damage other living organisms such as food crops, or damage the natural environment or built environment. |