Question

An example of major air pollutant is :

• A. $O_2$
• B. $C{O}_2$
• C. CO
• D. He

Answer 1

Answer: (C)

CO

Carbon monoxide reacts with other pollutants in the air to form potentially harmful ground level ozone. This occurs close to the site of emission.Inhalation of carbon monoxide at high concentrations can be fatal, because it prevents the transport of oxygen (in blood) around the body.