Below you will find the solution for: Oxygen makes up about 21% of Earth's atmosphere; this element dominates at 78% Jeopardy .
Since you already solved the question Oxygen makes up about 21% of Earth's atmosphere; this element dominates at 78% which had the answer NITROGEN, you can simply go back at the main post to check the other answers. You can do so by clicking the link here Jeopardy April 15 2022
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