Question

Which of the following pairs of words correctly completes the the blanks in the sentence below?

Depletion of ___ has been halted by a ban on the manufacturing of ___.

a) the ozone layer, chlorofluorocarbons
b) acid rain, carbon dioxide
c) fossil fuels, gasoline
d) G.W.(Global Warming), methane

Answer 1

the answer should be C

Answer 2

a)the ozone layer,chlorofluorocarbons i did some use and its use has been banned in many countries because of its effect on the ozone.