Scientists can determine if oxygen existed in Earth's Archean atmosphere by

a. determining the lack of oxidation that occurred.

b. determining how many people survived.

c. looking at the amount of salt content in rocks.

d. looking for oxidized iron in rocks.

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Kamren

10 September, 15:09

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Saul Bass · Answer 1

d. looking for oxidized iron in rocks.

Scientists can determine if oxygen existed in Earth's Archean atmosphere bya. determining the lack of oxidation that occurred.b. determining how many people survived.c. looking at the amount of salt content in rocks.d. looking for oxidized iron in rocks.