character: Professor Lisa Brown
topic: Chronic Exposure to Heavy Metals and Health Risks
grade: 11
subject: Chemistry
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character: Dr. Alex Smith
topic: Impact of Environmental Toxins on Human Health
grade: 11
subject: Chemistry
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character: Dr. Maria Garcia
topic: Understanding Heavy Metal Toxicity
grade: 11
subject: Chemistry
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character: Mr. John Doe
topic: Prevention of Heavy Metal Exposure in Industries
grade: 11
subject: Chemistry
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