character: Ms. Sarah Lee
topic: Impact of pH on Water Quality
grade: 12
subject: Chemistry
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character: Dr. John Smith
topic: Effects of pH on Aquatic Life
grade: 12
subject: Chemistry
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character: Mr. Alex Brown
topic: Chemical Properties of Water and pH Levels
grade: 12
subject: Chemistry
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character: Ms. Emily Johnson
topic: pH and Its Relationship to Water Pollution
grade: 12
subject: Chemistry
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