character: Dr. Jane Smith
topic: Analytical Techniques in Water Quality Assessment
grade: 11
subject: Chemistry
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character: Professor John Doe
topic: Advanced Methods in Environmental Chemistry
grade: 11
subject: Chemistry
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character: Ms. Emily Johnson
topic: Understanding Water Contaminants and Their Effects
grade: 11
subject: Chemistry
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character: Mr. Alex Brown
topic: Laboratory Techniques for Water Analysis
grade: 11
subject: Chemistry
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