Air Quality: name three of the six common air pollutants that the EPA has identified as being threatening to human health and the environment.

by

Air Quality

1.Earth’s atmosphere is composed of approximately ___ percent oxygen.

  • 93.5
  • 78.0
  • 21.0
  • 5.0

2.Name three of the six common air pollutants that the EPA has identified as being threatening to human health and the environment.

3.Classify each pollutant listed below as either primary or secondary.

  • Dust
  • Ozone (O3)
  • Carbon dioxide (CO2)
  • Methane (CH4)
  • Sulfuric Acid (H2SO4)

4.Name two anthropogenic sources of pollution and two natural sources of pollution.

  • Anthropogenic:
  • Natural:

5.Smog is formed through a reaction with sunlight, nitrogen oxides, and hydrocarbons, producing ___.