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Herrera2005:
The graph below depicts the percentages of oxygen and carbon dioxide in Earth’s atmosphere over time. Identify which line best represents each gas and explain your answer.
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Herrera2005:
:)
ItzAgar:
Can you clarify what you need help on exactly?
ItzAgar:
Is this a multi-answer choice?
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ItzAgar:
@Herrera2005
ItzAgar:
Are you here?
Vocaloid:
old question, will answer so this can be closed https://www.scientificpsychic.com/etc/timeline/atmosphere-composition.gif Earth transitioned from a CO2-based enviornment ~3-4 billion years ago to an oxygen-based enviornment ~2 bya
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