Question

Which of the following contribute to global warming?
(i) Carbon dioxide
(ii) Carbon monoxide
(iii) Chlorofluorocarbons
(iv) Methane
(v) Nitrogen dioxide
(vi) Nitrous oxide

• A. i, iii, v vi
• B. i, ii, iv, v
• C. i, iii, iv, vi
• D. ii, iv, v, vi

Answer 1

The correct option is C i, iii, iv, vi

Carbon dioxide, methane, chlorofluorocarbons (CFCs) and nitrous oxide are gases which most commonly cause greenhouse effect and contribute to global warming.