character: Ms. Sarah Green
topic: Effects of Heavy Metals in Water Testing and Mitigation Strategies
grade: 12
subject: Chemistry
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character: Dr. Emily Carter
topic: Impact of Industrial Waste on Water Quality
grade: 12
subject: Chemistry
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character: Mr. John Smith
topic: Techniques for Testing Water Contamination
grade: 12
subject: Chemistry
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character: Ms. Laura White
topic: Remediation Strategies for Heavy Metal Pollution
grade: 12
subject: Chemistry
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