1.

Chloroflourocarbon s(CFCs) are a problem because

A. attack ozone molecules in the upper atmosphere
B. carrole aerosol cans and release iron oxide into the atmosphere
C. were once through to be a hazard but this now causes unnecessary expense for industry
D. are released by air conditions into the ground water
Answer» B. carrole aerosol cans and release iron oxide into the atmosphere


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