Question

Which gas is emitted by the combustion of fossil fuels?

• A. $C{O}_2$
• B. $S{O}_2$
• C. $H_{2}S$
• D. $N{O}_2$

Answer 1

The correct option is A $C{O}_2$

Carbon dioxide is the major gas along with smaller amounts of methane and nitrous oxide which are emitted by the combustion of fossil fuels such as coal, oil, and natural gas and contribute to the major green house gases.

So, the correct answer is option A.