character: Professor Smith
topic: Chemical Reactions Involving CFCs
grade: 11
subject: Chemistry
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character: Dr. Jones
topic: Environmental Impact of CFCs
grade: 11
subject: Chemistry
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character: Ms. Taylor
topic: Ozone Layer Depletion and CFCs
grade: 11
subject: Chemistry
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character: Mr. Brown
topic: Alternatives to CFCs in Industry
grade: 11
subject: Chemistry
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