which term describes the atmosphere on early earth? aerobic oxygen - rich genetically diverse anaerobic

which term describes the atmosphere on early earth? aerobic oxygen - rich genetically diverse anaerobic
Answer
Brief Explanations:
Early Earth's atmosphere had very little oxygen. Anaerobic means without oxygen. Aerobic and oxygen - rich imply the presence of oxygen, and genetically diverse refers to biological genetic variation, not the atmosphere.
Answer:
anaerobic