character: Dr. Emily Carter
topic: Impact of pH Levels on Aquatic Life
grade: 12
subject: Chemistry
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character: Professor John Smith
topic: Effects of Acid Rain on Freshwater Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Sarah Lee
topic: Role of pH in Coral Reef Health
grade: 12
subject: Chemistry
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character: Ms. Rachel Nguyen
topic: Influence of Water Quality on Fish Populations
grade: 12
subject: Chemistry
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