character: Dr. Alex Chen
topic: Restoration of Eutrophic Lakes and Biodiversity
grade: 9
subject: Science
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character: Dr. Emily Robinson
topic: Impact of Eutrophication on Aquatic Life
grade: 9
subject: Science
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character: Professor Sarah Kim
topic: Methods for Restoring Aquatic Ecosystems
grade: 9
subject: Science
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character: Dr. Michael Thompson
topic: Biodiversity and Its Importance in Lake Ecosystems
grade: 9
subject: Science
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