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Air Pollution.

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  • معلومة اضافية
    • نبذة مختصرة :
      Air pollution, or the contamination of the atmosphere with harmful substances, is generated from natural and human-made sources. Natural sources of air pollution include gases, particulate matter from volcanoes, decomposing organic matter, pollen from plants, and windblown dust. Human-made sources of air pollution include industrial and automobile emissions and airborne particles associated with human-induced abrasion.