character: Dr. Clark
topic: Soil Erosion and its Consequences
grade: 9
subject: Geography
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character: Mr. Thompson
topic: Impact of Soil Erosion on Agriculture
grade: 9
subject: Geography
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character: Ms. Rivera
topic: Preventive Measures Against Soil Erosion
grade: 9
subject: Geography
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character: Mr. Johnson
topic: Effects of Soil Erosion on Water Quality
grade: 9
subject: Geography
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