character: Dr. Lee
topic: Mitigation Strategies for Acid Rain
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Environmental Chemistry and Acid Rain
grade: 9
subject: Chemistry
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character: Mr. Smith
topic: Impact of Acid Rain on Ecosystems
grade: 9
subject: Chemistry
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character: Dr. Kim
topic: Chemical Reactions Involved in Acid Rain
grade: 9
subject: Chemistry
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