character: Dr. Sylvia Green
topic: Impact of Water Management on Soil Erosion
grade: 9
subject: Geography
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character: Dr. James Peterson
topic: Soil Conservation Techniques and Their Effectiveness
grade: 9
subject: Geography
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character: Ms. Laura Kim
topic: The Role of Vegetation in Reducing Soil Erosion
grade: 9
subject: Geography
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character: Mr. Ethan Tran
topic: Effects of Urbanization on Soil Erosion Rates
grade: 9
subject: Geography
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