
\begin{tabular}{|c|c|}
\hline Q. 161 & Which among the following gases has the highest global warming potential? \\
\hline
- & $\mathrm{CO}_{2}$ \\
\hline - & Water vapor \\
\hline - & Methane \\
\hline - & $\mathrm{N}_{2} \mathrm{O}$ \\
\hline
\end{tabular}