character: Mr. James Lee
topic: Effects of Pollutants on Freshwater Fish
grade: 12
subject: Chemistry
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character: Dr. Sarah Nguyen
topic: Chemical Composition of Freshwater Ecosystems
grade: 12
subject: Chemistry
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character: Ms. Emily Carter
topic: Toxins in Aquatic Environments and their Impact on Fish Health
grade: 12
subject: Chemistry
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character: Mr. Alan Brown
topic: Bioaccumulation of Heavy Metals in Freshwater Species
grade: 12
subject: Chemistry
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