character: Mr. Blue
topic: Effects of Acid Rain on Aquatic Ecosystems
grade: 11
subject: Chemistry
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character: Dr. Green
topic: pH Levels and Aquatic Life
grade: 11
subject: Chemistry
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character: Ms. White
topic: Impact of Pollutants on Water Quality
grade: 11
subject: Chemistry
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character: Professor Red
topic: Chemical Reactions in Acidic Waters
grade: 11
subject: Chemistry
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