character: Mr. Johnson
topic: Impact of Heavy Metals in Water on Public Health
grade: 11
subject: Chemistry
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character: Dr. Adams
topic: Chemical Properties of Heavy Metals
grade: 11
subject: Chemistry
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character: Ms. Rivera
topic: Water Quality Testing and Assessment
grade: 11
subject: Chemistry
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character: Mr. Thompson
topic: Health Risks Associated with Contaminated Water
grade: 11
subject: Chemistry
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