Consider the following statements :
- 1.Agricultural soils release nitrogen oxides into environment.
- 2.Cattle release ammonia into environment.
- 3.Poultry industry releases reactive nitrogen compounds into environment.
Which of the statements given above is/are correct?
Show answer
Answer: D. Statement 1 is correct: fertilised farm soils release nitrogen oxides, including nitrous oxide. Statement 2 is correct: cattle dung and urine release ammonia. Statement 3 is correct: poultry litter releases ammonia and other reactive nitrogen compounds. So all three, as noted in the Indian Nitrogen Assessment (2017).
Watch for: Students think of nitrogen pollution only from vehicles and factories, not from farms and livestock.
Why the other options are wrong
- A. Wrong because statement 2 is also correct; cattle release ammonia.
- B. Wrong because statement 1 is also correct.
- C. Wrong because statements 1 and 3 are also correct.
Source to check: Indian Nitrogen Assessment (2017), Indian Nitrogen Group of the Society for Conservation of Nature (Elsevier)
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.