character: Mr. Green
topic: Soil Conservation Techniques in Arid Environments
subject: Geography
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character: Dr. Soilman
topic: Understanding Wind Erosion and Its Impact
subject: Geography
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character: Ms. Earth
topic: Practical Methods for Wind Erosion Control
subject: Geography
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character: Professor Landscape
topic: Evaluating the Effectiveness of Soil Conservation Practices
subject: Geography
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