character: Ms. Johnson
topic: Greenhouse Gas Effects on Climate
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: The Role of Carbon Dioxide in the Greenhouse Effect
grade: 12
subject: Chemistry
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character: Professor Lee
topic: Impact of Methane on Global Warming
grade: 12
subject: Chemistry
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character: Ms. Adams
topic: Ozone Layer Depletion and Climate Change
grade: 12
subject: Chemistry
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