character: Liam
topic: Catalytic Converters and Air Quality
grade: 11
subject: Chemistry
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character: Emily
topic: Impact of Emissions on Urban Air Quality
grade: 11
subject: Chemistry
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character: Jake
topic: Chemical Reactions in Catalytic Converters
grade: 11
subject: Chemistry
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character: Sara
topic: Environmental Policies and Air Quality Improvement
grade: 11
subject: Chemistry
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