03-06-2017
Biology

contestada

Chlorofluorocarbons (CFCs) are a problem because they

A. have been released in large quantities in the past
B. break down to reactive free chlorine atoms
C. attack ozone molecules in the upper atmosphere
D. all of the above

I know its C and A is pretty much true but I am really not sure about B so I don't know if it is D or just C. Please help

Respuesta :

04-06-2017

i think the best answer is D

Answer Link

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