character: Prof. Johnson
topic: Impact of Environmental Pollutants on Freshwater Species
grade: 11
subject: Chemistry
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character: Dr. Emily Carter
topic: Chemical Toxicology in Aquatic Ecosystems
grade: 11
subject: Chemistry
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character: Mr. Alan Forester
topic: Effects of Heavy Metals on Freshwater Fish
grade: 11
subject: Chemistry
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character: Ms. Rachel Greene
topic: Role of pH in Freshwater Biodiversity
grade: 11
subject: Chemistry
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