character: Dr. Sylvia Earle
topic: Ocean Conservation
grade: 12
subject: Chemistry
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character: Dr. Sylvia Earle
topic: Impact of Heavy Metal Pollution on Marine Life
grade: 12
subject: Chemistry
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character: Environmental Chemist
topic: Chemical Analysis of Heavy Metals in Ocean Water
grade: 12
subject: Chemistry
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character: Marine Biologist
topic: Effects of Heavy Metals on Ocean Ecosystems
grade: 12
subject: Chemistry
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