Why would the Environmental Protection Agency seek to monitor atmospheric pollution and air quality?

A.To make sure the air pressure remains constant over time

B.To make it rain in drought affected areas

C.To maintain the respiratory health of humans

D.To reduce the amount of oxygen released by the rainforests

HollyA  May 16, 2017

C. To maintain the respiratory health of humans.

Guest May 16, 2017

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