Which of the following was likely present in Earth's early atmosphere over four billion years ago? Group of answer choices Presence of DNA molecules Very hot temperatures Low levels of ultraviolet radiation

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Jianfeng asked Jul 8, 2022

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Which of the following was likely present in Earth's early atmosphere over four billion years ago?

Group of answer choices

Presence of DNA molecules

Very hot temperatures

Low levels of ultraviolet radiation

Abundance of oxygen

Biology
college

Jianfeng asked Jul 8, 2022

by Jianfeng

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Answer:

low levels of ultraviolet radiation ;)

Kleptine answered Jul 13, 2022

by Kleptine

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