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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
Billions of years ago, the Earth's atmosphere was composed primarily of carbon dioxide. What happened to much of this carbon dioxide?
A)   It is still in the atmosphere.
B)   It was dissolved into the Earth's oceans.
C)   It was broken down into carbon and oxygen by solar ultraviolet light.
D)   It was lost to space.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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7 years ago
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6 years ago
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