Question

Where do CFCs come from?

A:spray cans
B :fire extinguishers
C:Air conditioner
D: manufacturing foams
Or all above

Answer 1

All of the above

Step-by-step explanation:

Prior to the montreal CFC production ban, all of these products released CFCs into the atmosphere. Some old air conditioner still release CFC so please be sure to dispose of them as CFC kills the ozone layer.

Answer 2

all of the above

Step-by-step explanation: