character: Ms. Emily Roberts
topic: Impact of Soil pH on Nutrient Availability
grade: 11
subject: Chemistry
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character: Mr. John Smith
topic: Effects of Soil Composition on Plant Growth
grade: 11
subject: Chemistry
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character: Dr. Sarah Johnson
topic: Chemical Reactions in Soil: Nutrient Cycling
grade: 11
subject: Chemistry
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character: Ms. Anna Lee
topic: The Role of Soil Microorganisms in Nutrient Availability
grade: 11
subject: Chemistry
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