character: Ms. Rivera
topic: Eutrophication: Causes and Consequences in Freshwater Ecosystems
grade: 9
subject: Chemistry
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character: Dr. Martinez
topic: Nutrient Pollution and Its Impact on Water Quality
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: The Role of Phosphates in Aquatic Ecosystems
grade: 9
subject: Chemistry
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character: Ms. Lee
topic: Understanding Algal Blooms and Their Effects
grade: 9
subject: Chemistry
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