character: Dr. Lee
topic: Sustainable Practices in Metal Recycling
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Chemical Processes in Recycling Materials
grade: 9
subject: Chemistry
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character: Mr. Smith
topic: The Chemistry of Metals and Their Recovery
grade: 9
subject: Chemistry
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character: Dr. Patel
topic: Environmental Impact of Metal Waste
grade: 9
subject: Chemistry
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