character: Mr. Alan Brown
topic: Exploring the Effects of Chemical Pollutants
grade: 12
subject: Chemistry
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character: Dr. Linda Green
topic: Impact of Heavy Metals on Aquatic Life
grade: 12
subject: Chemistry
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character: Ms. Sarah White
topic: Air Quality and Human Health Risks
grade: 12
subject: Chemistry
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character: Mr. John Smith
topic: Biodegradation of Plastics in the Environment
grade: 12
subject: Chemistry
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