character: Professor Michael Lee
topic: Nutrient Cycling and Soil Chemistry
grade: 12
subject: Chemistry
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character: Dr. Sarah Thompson
topic: Soil Composition and Fertility
grade: 12
subject: Chemistry
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character: Dr. Kevin Brown
topic: Environmental Impact of Soil Management
grade: 12
subject: Chemistry
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character: Professor Emily White
topic: The Role of Microorganisms in Soil Chemistry
grade: 12
subject: Chemistry
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