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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
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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

User Cordsen
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Answer:

low levels of ultraviolet radiation ;)

User MindFresher
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