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History 7 Online
OpenStudy (ilovehorses14):

Using the theory of continental drift, scientists have proposed that about 200 million years ago the continents were once joined together in a supercontinent called A. Pangaea. B. Panthalassa. C. Laurasia. D. Gondwanaland.

OpenStudy (wwhitlock):

In Greek Pan means all Gaia means earth thalassa means sea

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