character: Dr. Emily Graves
topic: Soil Composition Analysis
grade: 9
subject: Geography
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character: GIS Technician Mark Li
topic: Using GIS for Environmental Studies
grade: 9
subject: Geography
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character: Professor Linda Green
topic: Geographic Information Systems in Agriculture
grade: 9
subject: Geography
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character: Researcher Tom Harris
topic: Effects of Soil Quality on Crop Yield
grade: 9
subject: Geography
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