character: Ms. Lee
topic: Soil pH and Its Effect on Plant Growth
grade: 12
subject: Chemistry
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character: David
topic: Nutrient Absorption in Plants
grade: 12
subject: Chemistry
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character: Ms. Johnson
topic: The Role of Soil Composition in Farming
grade: 12
subject: Chemistry
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character: Mr. Smith
topic: Chemical Reactions in Plant Nutrition
grade: 12
subject: Chemistry
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