Why did developed and developing countries agree to stop using CFCs at the 1987 Montreal Protocol?
A) CFCs deplete the ozone layer.
B) Humans, especially children, are susceptible to diabetes when exposed to CFCs.
C) Sulfuric acid was found to be a cheaper alternative to CFCs.
D) Adding CFCs to petroleum was found to be ineffective.
E) CFCs were not effective at preserving food.
A
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