Carbon Dioxide Makes Up Approximately _____ Percent of Earth's Atmosphere

Question

Carbon dioxide makes up approximately _____ percent of Earth's atmosphere.
A)94
B)44
C)4
D)0.04

Accepted Answer

Carbon dioxide makes up only 0.04% of Earth's atmosphere. This is a small but important amount, as even slight changes in the atmospheric concentration of carbon dioxide can have significant impacts on global climate patterns.