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Nitrogen. Nitrogen makes up roughly 78% of Earth's air. The other constituents include : * 20.95% oxygen * 0.93% argon * 0.038% carbon dioxide

and traces of other gases, and transported water vapor in varying amounts.

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5y ago
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12y ago

nitrogen is the gas that makes up about 78% of air.

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14y ago

The percentage of nitrogen is 78. The percentage of oxygen is 21. The percentage of other gases is 1.

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Xander Goelz

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1y ago
no

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12y ago

Nitrogen makes up about 78% of the gases in the atmosphere.

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16y ago

the present composition of the atmosphere is 79% nitrogen, 20% oxygen, and 1% other gases.

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13y ago

This would be nitrogen (N2), which is quite inert. The remainder of the atmosphere is mostly oxygen and argon. There are also trace gases and water vapor.

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5y ago

This gas is nitrogen.

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12y ago

nitrogen

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11y ago

Nitrogen

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Anonymous

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3y ago

nitrogen

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Q: What gas makes up 80 of the earth's atmosphere?
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