Which of the following sets of terms is associated with air pollution caused by burning fossil fuels

Question

1.acid rain, ozone hole, skin cancer

2.methane, smog, carbon dioxide

3.sulfur dioxide, smog, chlorofluorocarbons

4.carbon dioxide, smog, acid rain

MY ANSWER:
Is the answer: 4.carbon dioxide, smog, acid rain
?

Answer 1

yes that's the right answer