character: Dr. White
topic: Innovations in Biodegradable Plastics
grade: 9
subject: Chemistry
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character: Dr. Smith
topic: Advancements in Renewable Resources for Plastic Alternatives
grade: 9
subject: Chemistry
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character: Professor Green
topic: Chemical Properties of Biodegradable Materials
grade: 9
subject: Chemistry
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character: Ms. Lee
topic: The Role of Chemistry in Sustainable Development
grade: 9
subject: Chemistry
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