character: Mr. Patel
topic: The Importance of pH in Freshwater Environments
grade: 9
subject: Chemistry
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character: Ms. Carter
topic: Effects of Acid Rain on Aquatic Life
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Water Quality Testing: pH Levels in Different Ecosystems
grade: 9
subject: Chemistry
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character: Mrs. Jones
topic: Understanding Buffer Systems in Freshwater Biology
grade: 9
subject: Chemistry
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