character: Mr. Lee
topic: Advancements in Catalysts for Environmental Protection
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: Catalytic Convertors and Their Role in Reducing Emissions
grade: 12
subject: Chemistry
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character: Professor Green
topic: Green Chemistry Approaches to Environmental Challenges
grade: 12
subject: Chemistry
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character: Ms. Johnson
topic: Innovations in Photocatalysis for Water Purification
grade: 12
subject: Chemistry
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