character: Dr. Oceanus
topic: Marine Ecosystems
grade: 10
subject: Geography
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character: Coral Guardian
topic: Coral Reefs and Biodiversity
grade: 10
subject: Geography
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character: Professor Tidalwave
topic: Ocean Currents and Climate
grade: 10
subject: Geography
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character: Geo the Geologist
topic: Seafloor Geology and Plate Tectonics
grade: 10
subject: Geography
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