character: Ms. Sarah Johnson
topic: Alternatives to Fossil Fuels
grade: 11
subject: Chemistry
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character: Mr. David Lee
topic: Renewable Energy Sources
grade: 11
subject: Chemistry
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character: Dr. Emily Carter
topic: Impact of Biofuels on the Environment
grade: 11
subject: Chemistry
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character: Ms. Lisa Thompson
topic: Advancements in Solar Energy Technology
grade: 11
subject: Chemistry
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