character: Professor Mark Lee
topic: Soil Health and its Impact on Crop Yield
grade: 9
subject: Geography
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character: Dr. Emily Carter
topic: The Role of Soil Quality in Sustainable Agriculture
grade: 9
subject: Geography
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character: Ms. Sarah Thompson
topic: Effects of Soil Degradation on Food Security
grade: 9
subject: Geography
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character: Mr. John Baker
topic: Innovations in Soil Conservation Practices
grade: 9
subject: Geography
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