The Composition of Earth's Atmosphere by Volume Is ________ Nitrogen

question 104

Multiple Choice

The composition of Earth's atmosphere by volume is ________ nitrogen, ________ oxygen, 0.93% argon, 0.039% carbon dioxide, around 1% water vapor, and small amounts of other gases.

• A)78%; 21%
• B)68%; 31%
• C)88%; 11%
• D)49%; 49%
• E)22%; 77%

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