character: Professor Alan Ryder
topic: Innovations in Sustainable Materials
grade: 9
subject: Chemistry
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character: Dr. Emily Tran
topic: Biodegradable Polymers and Their Applications
grade: 9
subject: Chemistry
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character: Mr. James Patel
topic: Renewable Resources in Material Science
grade: 9
subject: Chemistry
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character: Dr. Sarah Lopez
topic: Recycling Technologies and Future Trends
grade: 9
subject: Chemistry
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