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Based on an apparent fit between Africa and South America Wegener hypothesized that at one time all continents were joined together in a "subcontinent" called Pangaea. The super-continent eventually broke into the smaller continental. which then "drifted" towards their present positions. Wegener supported his hypothesis by using circumstantial evidence, similar to the way that a detective would collect. evidence to solve a crime. There are four lines of evidence:

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14y ago

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