character: Ms. Sarah Thompson
topic: Role of Chromatography in Soil Contamination Studies
grade: 11
subject: Chemistry
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character: Dr. Emily Johnson
topic: Impact of Soil Contaminants on Agricultural Productivity
grade: 11
subject: Chemistry
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character: Mr. James Carter
topic: Techniques for Analyzing Soil Samples
grade: 11
subject: Chemistry
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character: Ms. Linda Garcia
topic: Understanding Soil Chemistry and Pollution
grade: 11
subject: Chemistry
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