Question

Which of the following is a common source of carbon monoxide (CO) in ambient air?

• A. Industrial smokestacks
• B. Volcanic eruptions
• C. Motor vehicles
• D. Forest fires

Answer 1

Answer:

C. Motor vehicles

• Carbon monoxide (CO) is a colourless, odour less gas produced by the incomplete combustion of carbonaceous fuels such as wood, petrol, coal, natural gas and kerosene in simple stoves, open fires, wick lamps, furnaces, fire-places.

• The predominant source of carbon monoxide (CO) in ambient air is from motor vehicles.