character: Dr. Emily Johnson
topic: Impact of Urban Noise on Ecosystem Dynamics
grade: 12
subject: Chemistry
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character: Professor James Smith
topic: Chemical Pollution and Urban Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Sarah Lee
topic: Effects of Noise on Biodiversity
grade: 12
subject: Chemistry
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character: Mr. Alex Turner
topic: Chemical Reactions in Urban Environments
grade: 12
subject: Chemistry
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