character: Jacques Cousteau
topic: Underwater Exploration
grade: 9
subject: Physics
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character: David Attenborough
topic: Marine Biology and Conservation
grade: 9
subject: Physics
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character: Sylvia Earle
topic: Ocean Exploration and Research
grade: 9
subject: Physics
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character: Bob Ballard
topic: Underwater Archaeology and Exploration
grade: 9
subject: Physics
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