character: Dr. James H. Brown
topic: Impact of Microorganisms on Soil Fertility
grade: 11
subject: Science
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character: Dr. Maria Johnson
topic: Role of Bacteria in Soil Health
grade: 11
subject: Science
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character: Dr. Linda Smith
topic: Fungi and Nutrient Cycling in Soil
grade: 11
subject: Science
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character: Dr. Robert Lee
topic: Soil Microbial Communities and Agricultural Productivity
grade: 11
subject: Science
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