UPSC Prelims 2019 – Question 41

Here is Question No. 41 a part of our series on UPSC Prelims 2019

Q41. Consider the following statements:

1. Agricultural soils release nitrogen oxides into the environment.
2. Cattle release ammonia into the environment.
3. Poultry industry releases reactive nitrogen compounds into the environment.

Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 and 3 only
(c) 2 only
(d) 1, 2 and 3

Answer: D

• Statement 1 is correct: Agricultural soils contributed to over 70% of N2O emissions from India in 2010, followed by wastewater (12%) and residential and commercial activities (6%).
• Statement 2 is correct: Cattle account for 80% of the ammonia production and India is globally the biggest source of ammonia emission, nearly double that of NOx emissions.
• Statement 3 is correct: The poultry industry, with an annual growth rate of 6%, recorded an excretion of reactive nitrogen compounds of 0.415 tonnes in 2016.

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