character: Mr. Robert Brown
topic: Measuring Air Quality and Its Impact on Communities
grade: 9
subject: Science
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character: Dr. Sarah Green
topic: Effects of Air Pollution on Human Health
grade: 9
subject: Science
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character: Ms. Emily White
topic: Community Initiatives for Improving Air Quality
grade: 9
subject: Science
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character: Mr. John Black
topic: Technology in Air Quality Monitoring
grade: 9
subject: Science
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