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According to Alfred Wegener's hypothesis of Continental Drift, what was the name of the single supercontinent that once existed?
According to Alfred Wegener's hypothesis of Continental Drift, what was the name of the single supercontinent that once existed?
When did the fragmentation of the supercontinent Pangaea begin, according to Wegener's hypothesis?
When did the fragmentation of the supercontinent Pangaea begin, according to Wegener's hypothesis?
What was Alfred Wegener's profession?
What was Alfred Wegener's profession?
What did Alfred Wegener challenge with his hypothesis of Continental Drift?
What did Alfred Wegener challenge with his hypothesis of Continental Drift?
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Over what span of time did the continental blocks 'drift' to their present positions, according to Wegener's hypothesis?
Over what span of time did the continental blocks 'drift' to their present positions, according to Wegener's hypothesis?
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