13. Which among the following gases present in the atmosphere does not contribute to global warming.
Sulphur dioxide
Explanation for correct option:
(C) The phenomena of global warming is the steady increase in the temperature near the earth's surface. Water vapour (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone (O3) are examples of greenhouse gases that exist naturally and enter the atmosphere as a result of both natural processes and human activities. Suphur dioxide (SO2) is not a greenhouse gas, thus it does not contribute to global warming.
Explanation for incorrect options:
Nitrogen oxides, carbon dioxide, and ozone are the examples of greenhouse gases and thus, they contribute to global warming. So, the rest three options (A), (B), and (D) are incorrect.
Hence, the correct option is (C);