character: Dr. Thompson
topic: Continental Drift Theory
grade: 10
subject: Geography
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character: Alfred Wegener
topic: Pioneering the Idea of Continental Drift
grade: 10
subject: Geography
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character: Dr. Harry Hess
topic: Seafloor Spreading and Its Relation to Continental Drift
grade: 10
subject: Geography
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character: Dr. Arthur Holmes
topic: Heat Flow and Mantle Convection in Continental Drift
grade: 10
subject: Geography
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