character: Coral Reef Carl
topic: Underwater Geography
grade: 3
subject: Geography
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character: Coral Reef Carl
topic: Marine Ecosystems
grade: 3
subject: Geography
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character: Coral Reef Carl
topic: Ocean Layers
grade: 3
subject: Geography
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character: Coral Reef Carl
topic: Aquatic Life Zones
grade: 3
subject: Geography
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