character: Mr. James Anderson
topic: pH Levels in Aquatic Ecosystems
grade: 11
subject: Biology
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character: Ms. Sarah Thompson
topic: Effects of Acid Rain on Fish Populations
grade: 11
subject: Biology
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character: Dr. Emily Carter
topic: Impact of Temperature on Aquatic pH Balance
grade: 11
subject: Biology
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character: Mr. Robert Lewis
topic: Role of Algae in Modifying pH Levels in Lakes
grade: 11
subject: Biology
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