The concentration of carbon dioxide in the atmosphere is four molecules for each __________ molecules of air.
A)100
B)1,000
C)10,000
D)100,000
E)1,000,000

Name: The concentration of carbon dioxide in the atmosphere is four molecules for each __________ molecules of air. A)100 B)1,000 C)10,000 D)100,000 E)1,000,000
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Quizplus · Accepted Answer

The concentration of carbon dioxide in the atmosphere is approximately 400 parts per million, which translates to about 4 molecules of CO2 per 10,000 molecules of air.

The Concentration of Carbon Dioxide in the Atmosphere Is Four