character: Dr. Mark A. Smith
topic: Influence of Soil pH on Biodiversity
grade: 12
subject: Chemistry
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character: Prof. Jane L. Doe
topic: Effects of Soil Composition on Ecosystem Diversity
grade: 12
subject: Chemistry
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character: Dr. Emily R. Johnson
topic: Chemical Properties of Soil and Their Impact on Plant Life
grade: 12
subject: Chemistry
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character: Dr. Kevin T. White
topic: Interplay of Soil pH and Nutrient Availability in Terrestrial Biomes
grade: 12
subject: Chemistry
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