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Before free oxygen gas became abundant in the oceans and atmosphere, it reacted with a metal and produced what type of formations? the ionosphere the ozone layer banded iron formations stromatolites
Before free oxygen gas became abundant in the oceans and atmosphere, it reacted with a metal and produced banded iron formations.
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wtf20142014|Points 35|
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Asked 11/17/2015 8:05:39 AM
Updated 11/17/2015 8:21:13 AM
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Edited by jeifunk [11/17/2015 8:21:13 AM], Confirmed by jeifunk [11/17/2015 8:21:13 AM]
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