character: Bill Nye
topic: Impact of Pollution on Ecosystems
grade: 11
subject: Chemistry
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character: David Attenborough
topic: Effects of Pollution on Wildlife
grade: 11
subject: Chemistry
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character: Jane Goodall
topic: Pollution and its Impact on Primate Habitats
grade: 11
subject: Chemistry
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character: Carl Sagan
topic: Human Impact on Earth’s Ecosystems
grade: 11
subject: Chemistry
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