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bold subject, expanded section on ozone breakdown
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Chlorofluorocarbon (CFC) is a compound consisting of [[chlorine]], [[fluorine]], and [[carbon]].
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'''Chlorofluorocarbon''' ('''CFC''') is a type of compound consisting of [[chlorine]], [[fluorine]], and [[carbon]].
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CFCs are very stable in the [[troposphere]]. They move to the Stratosphere and are broken down by strong ultraviolet light, where they release chlorine atoms that then deplete the [[ozone]] layer.  
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CFCs are very stable in the [[troposphere]]. They move to the [[stratosphere]] and are broken down by strong ultraviolet light, where they release chlorine radicals that act as a catalyst in the breakdown of [[ozone]] into [[oxygen]], which results in the depletion the [[ozone layer]].
    
CFCs are commonly used as refrigerants, solvents, and foam blowing agents. The most common CFCs are CFC-11, CFC-12, CFC-113, CFC-114, and CFC-115.  
 
CFCs are commonly used as refrigerants, solvents, and foam blowing agents. The most common CFCs are CFC-11, CFC-12, CFC-113, CFC-114, and CFC-115.  
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