Suggested that all continents were once connected as one large that broke apart 200 million years ago.

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Suggested that all continents were once connected as one large LANDMASS that broke apart 200 million years ago

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Alfred Wegener is the one who suggested this theory of continental drift and the answer to go in the blank would be ''landmass'', also this whole theory name is called Pangaea.

Answerepicenter;

Answer cumulus clouds;