character: Professor Lee
topic: Impact of Methane on Global Warming
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: Comparative Analysis of Greenhouse Gases
grade: 12
subject: Chemistry
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character: Ms. Johnson
topic: The Role of Carbon Dioxide in Climate Change
grade: 12
subject: Chemistry
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character: Mr. Adams
topic: Biological Sources of Methane Emissions
grade: 12
subject: Chemistry
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