usyed383
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If Mars’s atmosphere were 100% oxygen, would that make it like Earth’s?
Yes; Earth’s atmosphere is mostly oxygen.
Yes; the amount of oxygen in Earth’s atmosphere changes.
No; Earth’s atmosphere is mostly nitrogen.
No; Earth’s atmosphere is all carbon dioxide.

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tea4515
The right answer would be “No;Earths atmosphere is mostly nitrogen”
How do I know? I learned it in one of Film Theories videos lol

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