character: Ms. White
topic: The Impact of Oxygen Levels on Aquatic Life
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: Chemical Composition of Water and Its Importance in Ecosystems
grade: 12
subject: Chemistry
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character: Mr. Johnson
topic: Effects of Temperature on Dissolved Oxygen in Aquatic Environments
grade: 12
subject: Chemistry
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character: Ms. Lee
topic: Oxygen Levels and Fish Health: A Scientific Study
grade: 12
subject: Chemistry
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