character: Dr. Smith
topic: Plate Tectonics Theory
grade: 12
subject: Geography
LearnActions
SearchCreate
character: Albert Wegener
topic: Continental Drift Theory
grade: 12
subject: Geography
LearnActions
SearchCreate
character: Harry Hess
topic: Seafloor Spreading
grade: 12
subject: Geography
LearnActions
SearchCreate
character: John Tuzo Wilson
topic: Plate Boundaries Classification
grade: 12
subject: Geography
LearnActions
SearchCreate