character: Dr. Sarah Mitchell
topic: Chemical Properties of Biodegradable Materials
grade: 12
subject: Chemistry
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character: Professor John Smith
topic: Environmental Impact of Biodegradable Plastics
grade: 12
subject: Chemistry
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character: Dr. Emily Wong
topic: Polymer Chemistry and Degradation Rates of Biodegradable Polymers
grade: 12
subject: Chemistry
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character: Dr. Michael Brown
topic: Comparison of Biodegradable Materials and Traditional Plastics
grade: 12
subject: Chemistry
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