Question

what is air pollution mention hazards of air pollution

Answer 1

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pollutants which contaminate the air

Air pollution occurs when harmful substancesincluding particulates and biologicalmolecules are introduced into Earth'satmosphere. 

According to the 2014 World HealthOrganization report, air pollution in 2012caused the deaths of around 7 million peopleworldwide.

an estimate roughly echoed by onefrom the 
International Energy Agency. 

Answer 2

Air pollution occurs when harmful or excessive quantities of substances including the gases (co2,co,So2,No,ch4,cfc,radon)particles and biological molecules are inteoduced into earths atmosphere

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