character: Dr. Emily Johnson
topic: Impact of pH Levels on Aquatic Life
grade: 12
subject: Chemistry
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character: Mr. Thomas Miller
topic: Water Quality and Its Effects on Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Sarah White
topic: Chemistry of Water: Understanding pH and Aquatic Habitats
grade: 12
subject: Chemistry
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character: Prof. Laura Smith
topic: Acid Rain and Its Impact on Freshwater Species
grade: 12
subject: Chemistry
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