character: Johnson
topic: Impact of Vegetation on Soil Erosion
grade: 10
subject: Geography
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character: Smith
topic: Vegetation's Role in Preventing Soil Erosion
grade: 10
subject: Geography
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character: Lee
topic: Soil Erosion: Contributing Factors and Solution
grade: 10
subject: Geography
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character: Nguyen
topic: The Relationship between Vegetation and Soil Stability
grade: 10
subject: Geography
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