What is the source of carbon monoxide?

What is the source of carbon monoxide?

Q. What is the source of carbon monoxide?

A.            incomplete burning of wood

B.            fuels

C.            exhaust fumes of motor vehicles

D.            all of above

Answer: all of above

Gkseries: Gkseries.com is a premier website to provide complete solution for online preparation of different competitive exams like UPSC, SBI PO, SBI clerical, PCS, IPS, IAS, IBPS PO, IBPS Clerical exam etc. & other graduate and post-graduate exams. Learn more on about us page