character: Dr. Linda Green
topic: Impact of Heavy Metals on Aquatic Life
grade: 12
subject: Chemistry
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character: Dr. John Smith
topic: Toxicology of Heavy Metals in Marine Ecosystems
grade: 12
subject: Chemistry
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character: Prof. Maria Lopez
topic: Bioaccumulation of Heavy Metals in Freshwater Fish
grade: 12
subject: Chemistry
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character: Dr. Emily White
topic: Effects of Heavy Metal Pollution on Aquatic Food Chains
grade: 12
subject: Chemistry
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