character: Professor John Green
topic: The Role of Soil in Agriculture and Economic Stability
grade: 10
subject: Geography
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character: Dr. Lisa Harper
topic: Impact of Soil Fertility on Crop Yields
grade: 10
subject: Geography
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character: Mr. David Wallace
topic: Soil Conservation Practices and Their Economic Benefits
grade: 10
subject: Geography
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character: Ms. Angela Thomas
topic: The Intersection of Soil Health and Agricultural Sustainability
grade: 10
subject: Geography
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