character: Ms. Johnson
topic: Chemical Processes in Wastewater Treatment
grade: 11
subject: Chemistry
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character: Dr. Smith
topic: Introduction to Environmental Chemistry
grade: 11
subject: Chemistry
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character: Mr. Lee
topic: Principles of Chemical Reactions in Water Treatment
grade: 11
subject: Chemistry
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character: Ms. Garcia
topic: Impact of Chemical Treatments on Water Quality
grade: 11
subject: Chemistry
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