character: Carl Safina
topic: Ocean Conservation and Marine Ecosystems
grade: 10
subject: Biology
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character: Sylvia Earle
topic: Marine Biology and Oceanography
grade: 10
subject: Biology
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character: Jacques Cousteau
topic: Underwater Exploration and Marine Conservation
grade: 10
subject: Biology
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character: David Attenborough
topic: Biodiversity and Environmental Advocacy
grade: 10
subject: Biology
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