character: Ms. Laura Wang
topic: Eutrophication and Its Impact on Freshwater Systems
grade: 11
subject: Biology
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character: Mr. John Smith
topic: Nutrient Cycling in Freshwater Ecosystems
grade: 11
subject: Biology
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character: Dr. Emily Carter
topic: Effects of Algal Blooms on Aquatic Life
grade: 11
subject: Biology
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character: Ms. Sarah Johnson
topic: Water Quality and Ecosystem Health
grade: 11
subject: Biology
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