character: Robert Simeon
topic: Pangaea and Modern Continental Fit
grade: 10
subject: Geography
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character: Alfred Wegener
topic: Continental Drift Theory
grade: 10
subject: Geography
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character: Harry Hess
topic: Seafloor Spreading
grade: 10
subject: Geography
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character: J. Tuzo Wilson
topic: Plate Tectonics Theory
grade: 10
subject: Geography
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