character: Ms. Laura Green
topic: Influence of Organic Matter on Soil Acidity
grade: 12
subject: Chemistry
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character: Dr. Emily Carter
topic: Soil Chemistry and Nutrient Availability
grade: 12
subject: Chemistry
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character: Mr. Samuel Wright
topic: Effects of pH on Plant Growth
grade: 12
subject: Chemistry
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character: Ms. Angela Roberts
topic: Organic Matter and Soil Health
grade: 12
subject: Chemistry
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