character: Dr. Sarah Green
topic: Ecology and Heavy Metal Pollution
grade: 9
subject: Biology
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character: Dr. John Smith
topic: Impact of Heavy Metals on Aquatic Ecosystems
grade: 9
subject: Biology
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character: Professor Emily White
topic: Bioremediation Techniques for Heavy Metal Contamination
grade: 9
subject: Biology
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character: Dr. Rachel Brown
topic: Ecological Consequences of Heavy Metal Accumulation in Soil
grade: 9
subject: Biology
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