character: Mr. David Green
topic: Impact of transportation logistics on carbon footprint
grade: 9
subject: Geography
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character: Ms. Jane Doe
topic: Sustainable transportation practices
grade: 9
subject: Geography
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character: Mr. John Smith
topic: Geographic factors affecting transportation efficiency
grade: 9
subject: Geography
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character: Dr. Emily Johnson
topic: Carbon footprint analysis in urban planning
grade: 9
subject: Geography
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