character: Ocean Explorer
topic: Marine Ecosystems
grade: 6
subject: Geography
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character: Coral Reef Specialist
topic: Impact of Pollution on Marine Life
grade: 6
subject: Geography
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character: Marine Biologist
topic: Food Chains in Ocean Ecosystems
grade: 6
subject: Geography
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character: Ecosystem Researcher
topic: Human Impact on Oceans
grade: 6
subject: Geography
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