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20 October, 12:08

What is the most abundant element in the earth's atmosphere?

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  1. 20 October, 12:30
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    Nitrogen, The atmosphere is composed of ~78% nitrogen and ~21% oxygen, with small amounts of other gases. The bulk composition of the earth by weight is mostly, iron, oxygen, silicon and magnesium, in that order, with all the other elements making up only about 5% of the earth's weight.
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