character: Ms. Emily Chen
topic: How pH levels affect aquatic biodiversity
grade: 10
subject: Biology
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character: Mr. Jason Lee
topic: The impact of acid rain on freshwater ecosystems
grade: 10
subject: Biology
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character: Dr. Sarah Patel
topic: Role of pH in nutrient availability in aquatic environments
grade: 10
subject: Biology
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character: Professor Mark Thompson
topic: Effects of pH changes on fish population dynamics
grade: 10
subject: Biology
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