character: Dr. Sarah Johnson
topic: Impact of Nutrient Availability on Plant Health
grade: 12
subject: Biology
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character: Dr. Emily Carter
topic: Effects of Soil pH on Nutrient Absorption
grade: 12
subject: Biology
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character: Mr. David Lee
topic: Role of Macronutrients in Plant Growth
grade: 12
subject: Biology
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character: Dr. Jessica Wang
topic: Influence of Micronutrients on Crop Yields
grade: 12
subject: Biology
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