character: Mr. James Chen
topic: The Chemistry of Sustainable Plastics
grade: 9
subject: Chemistry
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character: Dr. Alice Monroe
topic: Biodegradable Plastics: Chemistry and Applications
grade: 9
subject: Chemistry
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character: Professor Sarah Lee
topic: Green Chemistry: Innovations in Plastic Production
grade: 9
subject: Chemistry
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character: Mr. David Thompson
topic: Recycling Plastics: Chemical Processes and Benefits
grade: 9
subject: Chemistry
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