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What is Mars' atmosphere?
|Mars' atmosphere (its sky) mostly contains carbon dioxide (about 96%), with smaller amounts of Nitrogen (2.7%) and Argon (1.6%). There are also small trace amounts of oxygen, carbon monoxide, water and methane in the atmosphere. Unfortunately this kind of atmosphere wouldn't be suitable for human beings to survive in.|
|What planet is Mars? Is it the seventh planet?||Mars is the fourth planet in the Solar System. The seventh planet is Uranus.|
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