Geography, 23.01.2021 02:30 allytrujillo20oy0dib
What was the biggest difference between the Earth's second atmosphere and third (present) atmosphere?
Carbon dioxide from volcanic activity became a major part of the atmosphere.
Oxygen from plant photosynthesis became a significant part of Earth's atmosphere.
Oxygen from water vapor in the atmosphere became a large part of Earth's atmosphere.
High percentages of Carbon dioxide caused a sustained warming cycle 500 million years ago.
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What was the biggest difference between the Earth's second atmosphere and third (present) atmosphere...
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