Carbon monoxide is produced from 1 Incomplete burning of fossil fuels 2 nbs...........

Environment and Ecology Air Pollution

Carbon monoxide is produced from

1. Incomplete burning of fossil fuels.

2. Enteric fermentation in cattle.

3. Photo-chemical reaction in troposphere.

4. Industrial processes like iron smelting.

Select the correct answer using the codes given below.

1, 2 and 3

1 , 3 and 4

2 ,3 and 4

1 ,2, and 4

Carbon monoxide cannot be produced from enteric fermentation in cattle.

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