character: Mrs. Brown
topic: Environmental Impact of Biofuels
grade: 11
subject: Chemistry
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character: Mr. Smith
topic: Renewable Energy Sources and Their Benefits
grade: 11
subject: Chemistry
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character: Dr. Green
topic: Carbon Footprint Reduction through Alternative Fuels
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Chemistry of Ethanol Production from Biomass
grade: 11
subject: Chemistry
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