Question

Which of the following is mainly responsible for air pollution?

• A. N${}_2$
• B. CO
• C. Sulphur
• D. CO${}_2$

Answer 1

The correct option is B CO

Carbon monoxide is a gaseous pollutant which is released due to the incomplete combustion of the fuels. The gas is released by the automobiles and industries. The increase in the concentration of the gas is considered as the main reason for pollution. Due to modernisation, there is a terrible increase in the use of vehicles and industries which have increased the amount of CO in the atmosphere.

Thus, the correct answer is option B.