character: Dr. Emily Carter
topic: Impact of Heavy Metals on Aquatic Ecosystems
grade: 12
subject: Geography
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character: Dr. Alan Foster
topic: Heavy Metals in Water Sources and Their Effects
grade: 12
subject: Geography
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character: Ms. Lisa Chen
topic: Biomagnification of Heavy Metals in Food Webs
grade: 12
subject: Geography
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character: Professor John Smith
topic: Mitigation Strategies for Heavy Metal Pollution in Aquatic Systems
grade: 12
subject: Geography
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