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Q. |
An example of major air pollutant is – |
A. | Oxygen |
B. | Carbon monoxide |
C. | Helium |
D. | Carbon dioxide |
Answer» B. Carbon monoxide | |
Explanation: Carbon monoxide (CO) is a colourless, odorless, non-irritating but very poisonous gas which is a product by incomplete combustion of fuel such as natural gas, coal or wood. Vehicular exhaust is a major source of carbon monoxide. |
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