Oxygen in early atmosphere
There was no oxygen in the early atmosphere because:
- Volcanoes didn't release Oxygen, and the atmoshpere was only filled with gasses released by Volcanoes
- Oldest rocks contain compounds that COULD NOT have been made if Oxygen was around.
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Gases in early atmosphere.
- Carbon Dioxide
Because these gasses are released my volcanoes and the earth was filled with volcanoes in the early atmosphere.
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