10 Questions
Which gas makes up the largest percentage of dry air by mole fraction?
Nitrogen
What is the average amount of water vapor in the atmosphere at sea level?
1%
What is the main function of Earth's atmosphere?
To retain heat through the greenhouse effect
What is the percentage of oxygen in dry air by mole fraction?
20.95%
What is the percentage of carbon dioxide in dry air by mole fraction?
0.04%
Which gas makes up the largest percentage of Earth's atmosphere by mole fraction?
Nitrogen
What is the average amount of water vapor in the entire atmosphere?
0.4%
What is the main function of Earth's atmosphere?
Allowing life and liquid water to exist on the Earth's surface
What is the percentage of argon in dry air by mole fraction?
0.93%
What is the diurnal temperature variation?
The variation in temperature between day and night
Test your knowledge about Earth's atmosphere and its important functions such as heat retention, protection from meteoroids, and support for life.
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