keanagalvez2 keanagalvez2
  • 04-05-2021
  • Biology
contestada

During which eon did oxygen begin to build up the most in Earth’s atmosphere?

Hadean

Archean

Proterozoic

Respuesta :

jmed0688
jmed0688 jmed0688
  • 04-05-2021

Answer: Proterozoic

Explanation:

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