character: Ms. Johnson
topic: Effects of Environmental Chemicals on Human Health
grade: 10
subject: Biology
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character: Mr. Smith
topic: Impact of Pollution on Ecosystems
grade: 10
subject: Biology
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character: Mrs. Lee
topic: Toxicology and Its Importance in Public Health
grade: 10
subject: Biology
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character: Dr. White
topic: Chemical Exposure and its Role in Disease
grade: 10
subject: Biology
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