character: Mr. Smith
topic: Acid Rain and Its Effects
grade: 11
subject: Chemistry
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character: Dr. Johnson
topic: The Chemistry of Acid Rain
grade: 11
subject: Chemistry
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character: Ms. Lee
topic: Environmental Impact of Acid Rain
grade: 11
subject: Chemistry
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character: Professor Green
topic: Mitigation Strategies for Acid Rain
grade: 11
subject: Chemistry
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