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Select all of the answers that apply. Which of the following factors caused the early atmosphere to become thicker? volcanic outgassing meteorite and comet impacts cyanobacteria…

Select all of the answers that apply. Which of the following factors caused the early atmosphere to become thicker? volcanic outgassing meteorite and comet impacts cyanobacteria…
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Select all of the answers that apply. Which of the following factors caused the early atmosphere to become thicker? volcanic outgassing meteorite and comet impacts cyanobacteria banded iron formations

asked
User Stylianos Gakis
by
7.1k points

2 Answers

3 votes

The answer is

A. volcanic outgassing

C. cyanobacteria

D. banded iron formations

answered
User Petro Popelyshko
by
8.3k points
2 votes
Volcanic outgassing
Cyanobacteria banded iron formation
I think this is correct but I am not fully sure
answered
User Eric Fleischman
by
8.5k points
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