character: Dr. Emily Johnson
topic: The Role of Microorganisms in Soil Fertility
grade: 12
subject: Biology
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character: Professor Alan Smith
topic: The Impact of Soil Bacteria on Plant Growth
grade: 12
subject: Biology
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character: Dr. Sarah Lee
topic: Fungi and Nutrient Cycling in Ecosystems
grade: 12
subject: Biology
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character: Mr. James Anderson
topic: Soil Composition and Its Importance for Agriculture
grade: 12
subject: Biology
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