character: Professor John Landers
topic: Impact of Soil Erosion on Ecosystems
grade: 9
subject: Geography
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character: Dr. Emily Carter
topic: Effects of Deforestation on Soil Quality
grade: 9
subject: Geography
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character: Mr. Thomas Reed
topic: Soil Conservation Techniques and Their Benefits
grade: 9
subject: Geography
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character: Ms. Lisa Wong
topic: The Role of Vegetation in Preventing Soil Erosion
grade: 9
subject: Geography
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