Question

Which gas, carbon monoxide or carbon dioxide, is a major air pollutant?

Answer 1

Answer:

CO2

Explanation:

Answer 2

Answer:

Carbon monoxide is the major air pollutant.

Explanation:

Carbon dioxide also causes air pollution but plants absorb carbon dioxide and release oxygen. Hence, green plants reduce the amount of carbon dioxide, so they cause low air pollution.

But, carbon monoxide is a very stable compound, it acts on hemoglobin and converts it into cyanmethemoglobin. This stays in the blood. Since, this form is so stable it stays in the blood for a long time and it is very difficult to remove.

So, carbon monoxide is the leading air pollutant.