character: Ms. Lee
topic: Impact of Heavy Metals in Soil: A Chemical Perspective
grade: 9
subject: Chemistry
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character: Dr. Smith
topic: Soil Chemistry and Pollution: Understanding Heavy Metals
grade: 9
subject: Chemistry
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character: Mrs. Johnson
topic: Remediation Techniques for Contaminated Soils
grade: 9
subject: Chemistry
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character: Mr. Patel
topic: The Role of pH in Heavy Metal Mobility in Soil
grade: 9
subject: Chemistry
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