character: Dr. Emily Carter
topic: Environmental Impact of Transportation
grade: 9
subject: Geography
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character: Professor John Smith
topic: Sustainable Transportation Solutions
grade: 9
subject: Geography
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character: Sarah Johnson
topic: Effects of Urbanization on Air Quality
grade: 9
subject: Geography
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character: Michael Lee
topic: Carbon Footprint of Different Modes of Transport
grade: 9
subject: Geography
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