character: Mr. Thompson
topic: Understanding Carbon Dioxide and Combustion Products
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Chemical Reactions and Environmental Impact
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Greenhouse Gases and Global Warming
grade: 9
subject: Chemistry
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character: Mr. Parker
topic: Fossil Fuels and Renewable Energy Sources
grade: 9
subject: Chemistry
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