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Science

What gases make up mars atmosphere?

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The atmosphere of Mars is the layer of gases surrounding Mars. It is primarily composed of 95% carbon dioxide, 2.8% nitrogen, and 2% argon. It has no appreciable oxygen, and its atmospheric pressure is about one one hundredth that of the Earth.

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The mars atmosphere is primarily composed of carbon dioxide (95%), molecular nitrogen (2.8%), and argon (2%).

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