character: Mr. Thompson
topic: Water Treatment and its Efficacy Against Pollutants
grade: 11
subject: Chemistry
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character: Ms. Lopez
topic: Chemical Reactions in Water Purification
grade: 11
subject: Chemistry
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character: Dr. Green
topic: Advanced Filtration Techniques for Water Safety
grade: 11
subject: Chemistry
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character: Mr. Smith
topic: Impact of Industrial Waste on Water Quality
grade: 11
subject: Chemistry
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