character: Ms. Sarah Johnson
topic: Microbial Activity in Soil Health
grade: 12
subject: Chemistry
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character: Dr. Emily Carter
topic: The Role of Soil Microorganisms in Nutrient Cycling
grade: 12
subject: Chemistry
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character: Mr. Thomas Anderson
topic: Effects of Pesticides on Soil Microbial Communities
grade: 12
subject: Chemistry
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character: Ms. Rachel Lee
topic: Impact of Soil pH on Microbial Diversity
grade: 12
subject: Chemistry
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