character: Dr. Sandy Loam
topic: Erosion Control Techniques
grade: 9
subject: Science
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character: Professor Clay E. Soil
topic: Soil Conservation Methods
grade: 9
subject: Science
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character: Ms. Greta Greenfield
topic: Sustainable Agriculture Practices
grade: 9
subject: Science
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character: Mr. River Bank
topic: Effects of Erosion on Ecosystems
grade: 9
subject: Science
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