character: Alfred Wegener
topic: Theories of Continental Drift
grade: 10
subject: Geography
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character: Charles Lyell
topic: Geological Time and Principles of Geology
grade: 10
subject: Geography
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character: Harry Hess
topic: Seafloor Spreading Theory
grade: 10
subject: Geography
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character: James Hutton
topic: Uniformitarianism and Earth's Processes
grade: 10
subject: Geography
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