character: Dr. Emily Stone
topic: Soil Composition and Properties
grade: 9
subject: Geography
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character: Professor Mark Rivers
topic: Geological Formations and Soil Types
grade: 9
subject: Geography
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character: Dr. Lisa Clay
topic: Effects of Soil Composition on Agriculture
grade: 9
subject: Geography
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character: Mr. James Earth
topic: Erosion and Soil Retention Techniques
grade: 9
subject: Geography
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