character: Dr. Michael Lee
topic: Soil Erosion and Its Effects on Crop Production
grade: 12
subject: Geography
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character: Professor Jane Smith
topic: Sustainable Agricultural Practices
grade: 12
subject: Geography
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character: Dr. Emily Johnson
topic: Impact of Climate Change on Soil Health
grade: 12
subject: Geography
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character: Mr. David Brown
topic: Conservation Tillage and Soil Conservation Techniques
grade: 12
subject: Geography
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