character: Chlorofluorocarbons (CFCs)
topic: Impact on Ozone Layer
grade: 11
subject: Chemistry
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character: Ozone Layer Depletion
topic: Causes and Effects
grade: 11
subject: Chemistry
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character: Atmospheric Chemistry
topic: Role of CFCs
grade: 11
subject: Chemistry
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character: Environmental Policies
topic: Regulation of CFCs
grade: 11
subject: Chemistry
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