character: Rachel Carson
topic: Impact of water pollution on ecosystems
grade: 11
subject: Chemistry
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character: Jacob Bronowski
topic: Environmental Science and Pollution
grade: 11
subject: Chemistry
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character: Bill Nye
topic: Effects of Pollution on Water Quality
grade: 11
subject: Chemistry
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character: David Suzuki
topic: Ecosystem Health and Pollution
grade: 11
subject: Chemistry
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