character: Mr. David Miller
topic: Erosion Control Techniques in Different Land Use Scenarios
grade: 9
subject: Geography
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character: Ms. Sarah Johnson
topic: Impact of Agriculture on Soil Erosion
grade: 9
subject: Geography
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character: Mr. Tom Williams
topic: Urban Development and Its Effects on Erosion
grade: 9
subject: Geography
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character: Dr. Emily Chen
topic: Natural Erosion Processes and Mitigation Strategies
grade: 9
subject: Geography
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