character: Ms. Johnson
topic: The Role of Chemistry in Environmental Monitoring
grade: 9
subject: Chemistry
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character: Mr. Smith
topic: The Impact of Acid Rain on Ecosystems
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Water Quality Testing and Chemical Analysis
grade: 9
subject: Chemistry
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character: Ms. Garcia
topic: Green Chemistry and Sustainable Practices
grade: 9
subject: Chemistry
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