character: Mr. John Carter
topic: Innovative Technologies in Waste Reduction
grade: 9
subject: Science
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character: Dr. Emily Green
topic: Sustainable Practices in Waste Management
grade: 9
subject: Science
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character: Ms. Sarah Lee
topic: Recycling Technologies and Environmental Impact
grade: 9
subject: Science
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character: Mr. David Smith
topic: The Role of Technology in Reducing Landfill Waste
grade: 9
subject: Science
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