character: Dr. Emily Adams
topic: Impact of Public Transport on Urban Pollution
grade: 9
subject: Geography
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character: John Doe
topic: Urban Planning and Pollution Control
grade: 9
subject: Geography
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character: Sarah Johnson
topic: Effects of Traffic Emissions in Cities
grade: 9
subject: Geography
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character: Michael Smith
topic: Sustainable Transportation and Air Quality
grade: 9
subject: Geography
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