character: David Attenborough
topic: Impact of Pollution on Marine Life
grade: 12
subject: Chemistry
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character: Environmental Scientist
topic: Chemical Composition of Marine Pollution
grade: 12
subject: Chemistry
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character: Marine Biologist
topic: Effects of Plastic Debris on Marine Ecosystems
grade: 12
subject: Chemistry
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character: Oceanographer
topic: Impact of Heavy Metals on Marine Organisms
grade: 12
subject: Chemistry
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