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Oxygen makes up about one fifth, or approximately 21%, of the Earth's atmosphere. It is essential for the respiration of most living organisms and plays a critical role in various biochemical processes. The remaining components of the atmosphere primarily include nitrogen, argon, carbon dioxide, and trace gases.

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3d ago

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What is the gas that makes up about one-fifth of earth's atmosphere?

Oxygen makes up approximately one-fifth of Earth's atmosphere.


Which gas makes up one-fifth of ordinary air?

Oxygen makes up roughly 21% of our atmosphere. Nitrogen is the dominant gas in our atmosphere (roughly 78%). The remaining 1% is comprised of carbon dioxide and other trace gases.


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The Earth's atmosphere is composed of the following gasses:Oxygen (O2) - 21%Nitrogen (N2) - 78%Argon (Ar) - 1%Carbon Dioxide (CO2) - 0.038%Water (H20) - varies from 0 - 4%Neon (Ne) - 0.0018%Helium (He) - 0.000524%Methane (CH4) - 0.0002%Krypton (Kr) - 0.000114%Hydrogen (H2) - 0.00005%Nitrous oxide (N2O) - 0.00005%xenon (Xe) - 0.0000087%Thus, water vapour can make up as much as 4% of the Earth's atmosphere.


What is the gas that makes up twenty one percent of earths atmosphere?

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What is the number one gas in martian atmosphere?

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What layer of the atmosphere is made up from one gas?

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What makes up one fifth of the air you breathe?

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