character: Dr. Sarah Kim
topic: Impact of pH on Soil Nutrients
grade: 11
subject: Chemistry
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character: Dr. Emily Wong
topic: Soil Chemistry and Plant Growth
grade: 11
subject: Chemistry
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character: Mr. John Smith
topic: Effects of Soil Acidity on Nutrient Availability
grade: 11
subject: Chemistry
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character: Ms. Rachel Green
topic: Understanding Soil pH and Its Effects on Agriculture
grade: 11
subject: Chemistry
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