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Physical Environment > Early Atmosphere |
This site tells the story of the history of the universe. Click Earlier and Later to follow the story. Note: Many facts have been simplified to make them easier to understand. |
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The first volcanoes released gases, making the first atmosphere. We are not sure which molecules the atmosphere was made of. It probably contained carbon dioxide molecules and water, as well as many other molecules. One thing is known: there were no oxygen molecules in that atmosphere.
The atmosphere we know today appeared much later. |
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Physical Environment > Early Atmosphere |
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Basic Information |
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