character: Dr. Emily Carter
topic: Role of freshwater ecosystems in supporting biodiversity
grade: 9
subject: Geography
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character: Dr. Jane Smith
topic: Importance of wetlands for biodiversity preservation
grade: 9
subject: Geography
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character: Professor Mark Lee
topic: Impact of river ecosystems on local wildlife
grade: 9
subject: Geography
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character: Dr. Alicia Wong
topic: Freshwater habitats and their role in ecological balance
grade: 9
subject: Geography
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