character: Dr. Jane Roberts
topic: Soil Erosion Control Practices
grade: 9
subject: Geography
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character: Professor Alan Green
topic: Impact of Soil Erosion on Agriculture
grade: 9
subject: Geography
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character: Engineer Lisa Tran
topic: Innovative Techniques for Soil Conservation
grade: 9
subject: Geography
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character: Researcher Mark Thompson
topic: The Role of Vegetation in Reducing Soil Erosion
grade: 9
subject: Geography
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