Which of the following pollutants is absent in the emissions from a fertiliser plant ?
Correct answer: D. CO
- A. SO2 & SO3
- B. NO2
- C. NH3
- D. CO
Explanation
Fertiliser plants commonly release ammonia, nitrogen oxides and sulphur oxides depending on the process and fuel used. Carbon monoxide is not normally a characteristic fertiliser-plant emission, making it the absent pollutant here.
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