character: Tom Patel
topic: Nutrient Cycling in Soil Ecosystems
subject: Science
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character: Dr. Emily Chen
topic: Soil Microorganisms and Nutrient Dynamics
subject: Science
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character: Professor John Smith
topic: Impact of Organic Matter on Soil Health
subject: Science
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character: Lisa Green
topic: Role of Earthworms in Soil Fertility
subject: Science
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