character: Dr. Lisa Chen
topic: Comparative Analysis of Methane and Carbon Dioxide Emissions
grade: 11
subject: Geography
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character: Mr. John Smith
topic: Impact of Greenhouse Gases on Global Warming
grade: 11
subject: Geography
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character: Ms. Emily Davis
topic: Sources and Effects of Methane Emissions
grade: 11
subject: Geography
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character: Dr. Sarah Johnson
topic: Carbon Dioxide: Sources, Sinks, and Climate Impact
grade: 11
subject: Geography
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