character: Ms. Rivera
topic: Bioaccumulation of Toxins in Aquatic Food Chains
grade: 10
subject: Science
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character: Mr. Lopez
topic: Effects of Pollution on Marine Ecosystems
grade: 10
subject: Science
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character: Dr. Kim
topic: Biomagnification and Its Impact on Oceanic Life
grade: 10
subject: Science
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character: Ms. Chen
topic: Chemical Contaminants in Freshwater Habitats
grade: 10
subject: Science
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