character: Dr. Emily Chen
topic: Study of volcanic ash and its effects on soil biodiversity
grade: 9
subject: Science
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character: Dr. Mark Lopez
topic: Impact of ashfall on plant growth and soil health
grade: 9
subject: Science
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character: Prof. Sarah Kim
topic: Microbial diversity in volcanic soils
grade: 9
subject: Science
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character: Dr. John Patel
topic: Nutrient cycling in volcanic ash-affected ecosystems
grade: 9
subject: Science
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