character: Dr. Mark Wilson
topic: Soil Chemistry and pH Effects on Plant Growth
grade: 12
subject: Chemistry
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character: Dr. Emily Taylor
topic: Impact of Nutrient Availability on Plant Health
grade: 12
subject: Chemistry
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character: Dr. Lisa Green
topic: The Role of Soil Microorganisms in Nutrient Cycling
grade: 12
subject: Chemistry
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character: Dr. Robert Hill
topic: Environmental Influences on Soil pH and Plant Growth
grade: 12
subject: Chemistry
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