character: John Smith
topic: Impact of pH on Water Quality
grade: 12
subject: Chemistry
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character: Dr. Jane Goodall
topic: Effects of pH on Aquatic Life
grade: 12
subject: Chemistry
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character: Dr. Carl Sagan
topic: pH Measurement Techniques in Environmental Chemistry
grade: 12
subject: Chemistry
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character: Professor Lisa Welchel
topic: Relationship Between pH Levels and Water Pollutants
grade: 12
subject: Chemistry
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