character: Dolphin Dave
topic: How Ocean Currents Disperse Pollution
grade: 3
subject: Geography
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character: Coral the Scientist
topic: Ocean Ecosystems and Pollution
grade: 3
subject: Geography
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character: Sandy Shores
topic: Effects of Pollution on Beaches
grade: 3
subject: Geography
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character: Nautical Nancy
topic: Understanding Ocean Currents
grade: 3
subject: Geography
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