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Air pollution is the introduction of particulates, biological molecules, or other harmful materials into the Earth's atmosphere, possibly causing disease, death to humans, damage to other living organisms such as food crops, or the natural or built environment.
en.wikipedia.org/wiki/Air_pollution
Added 12/26/2014 12:16:02 AM
This answer has been confirmed as correct and helpful.
Confirmed by
selymi [12/26/2014 10:03:01 AM]
