character: Dr. Smith
topic: Toxicity of Heavy Metals in Soil
grade: 11
subject: Chemistry
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character: Dr. Adams
topic: Environmental Impact of Soil Contaminants
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Bioremediation of Heavy Metals in Soil
grade: 11
subject: Chemistry
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character: Prof. Lee
topic: Heavy Metal Analysis in Agricultural Soils
grade: 11
subject: Chemistry
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