character: Dr. Emily Johnson
topic: The Role of Microorganisms in Nutrient Cycling
grade: 11
subject: Chemistry
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character: Dr. Michael Smith
topic: Microbial Contributions to Soil Fertility
grade: 11
subject: Chemistry
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character: Ms. Sarah Lee
topic: The Impact of Bacteria on Ecosystems
grade: 11
subject: Chemistry
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character: Professor John Doe
topic: Nutrient Cycling in Aquatic Systems
grade: 11
subject: Chemistry
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