character: David Attenborough
topic: The Effects of Pollution on Marine Life
grade: 9
subject: Geography
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character: Jacques Cousteau
topic: Marine Conservation Efforts
grade: 9
subject: Geography
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character: Sylvia Earle
topic: The Impact of Overfishing on Marine Ecosystems
grade: 9
subject: Geography
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character: Carl Safina
topic: Human Impact on Ocean Biodiversity
grade: 9
subject: Geography
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