Question

NASA projected stratospheric ozone levels (in Dobson units) if chlorofluorocarbons had not been banned. Which product was most likely NOT affected by the banning of CFCs by the Montreal Protocol?

A) Inhalers
B) Aircraft fuels
C) Freon and other refrigerants
D) Aerosols such as spray paint and hairspray

Answer 1

Aircraft fuels most likely were not affected by the Montreal Protocol's ban on CFCs, as they do not contain CFCs unlike other products like refrigerants and aerosols.

Step-by-step explanation:

The product most likely NOT affected by the banning of chlorofluorocarbons (CFCs) under the Montreal Protocol is B) Aircraft fuels. The Montreal Protocol targeted substances that damaged the ozone layer, including CFCs used in products such as refrigerants, aerosol propellants, and in some types of inhalers. Aircraft fuels, however, do not contain CFCs and thus would not have been affected by this specific regulation. The agreement has led to a significant decrease in the use of CFCs and a recovery of the ozone layer.