contestada

How long do CFC molecules remain active in the stratosphere?

a. 10 to 50 years
b. 30 to 60 years
c. 60 to 120 years
d. 150 to 500 years

Respuesta :

michael420
The CFC molecules remain intact and active long enough to make it into the stratosphere and can then stay active for up to a century! 

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