sqwer2JESUS
sqwer2JESUS sqwer2JESUS
  • 06-03-2017
  • Biology
contestada

The primary source of air pollution is:

trash
factories
automobiles
sewage treatment plants

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Pitxbullxgirl
Pitxbullxgirl Pitxbullxgirl
  • 06-03-2017
it would be Automobiles because automobiles produce gas which is a source of air pollution.
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