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Geography, 31.08.2019 02:30 jkw1222p0ttvq
The cretaceous is a period in ancient earth that ended about 65 million years ago. the eocene was a period in earth’s past about 45 million years ago. according to research examining geological sediments, how high did atmospheric concentrations of carbon dioxide reach in these periods?
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The cretaceous is a period in ancient earth that ended about 65 million years ago. the eocene was a...
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