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Think about the hole in the ozone layer and how it got there. a. List two specific sources of ozone-depleting substances (ODS) in the 1980s.
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Think about the hole in the ozone layer and how it got there.

a. List two specific sources of ozone-depleting substances (ODS) in the 1980s.

User Richardissimo
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The main cause of ozone depletion and the ozone hole is manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, and foam- blowing agents (chlorofluorocarbons (CFCs), HCFCs, halons), referred to as ozone-depleting substances

User Mabel Villalba
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