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yolosanti45
yolosanti45 yolosanti45
  • 08-06-2016
  • Biology
Answered

que es la contaminacion del aire

Verified Answer :

vadimbur
vadimbur vadimbur
  • 08-06-2016

la presencia o introducción en el aire de una sustancia que tiene efectos nocivos o tóxicos.
the presence in or introduction into the air of a substance which has harmful or poisonous effects.

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