Biology, 10.09.2021 17:00, hdjsjfjruejchhehd

Select the correct answer from each drop-down menu : Compared to modern Earth, Precambrian Earth's atmosphere and oceans were much richer in
because it was so prevalent in
.

A. carbon dioxide, oxygen, salt

B. volcanic gas, single-called organisms, crustal rock

Answers: 2

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Select the correct answer from each drop-down menu : Compared to modern Earth, Precambrian Earth's...