character: Dr. Lee
topic: Impact of Urbanization on Water Quality
grade: 9
subject: Geography
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character: Dr. Smith
topic: Effects of Industrialization on River Ecosystems
grade: 9
subject: Geography
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character: Ms. Johnson
topic: Urban Runoff and Its Implications for Freshwater Systems
grade: 9
subject: Geography
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character: Mr. Garcia
topic: Sustainable Urban Development and Water Conservation
grade: 9
subject: Geography
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