Given below are two statements, one is labelled as Assertion (A) and other as Reason (R) : Assertion (A) : Ambient air quality of Delhi is deteriorating day by day. Reason (R) : Stubble burning in Panjab and Haryana affects air quality in Delhi. Select the correct answer from the codes given below :
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
Assertion (A) is true: Delhi's ambient air quality has worsened over the years, with PM2.5 and PM10 levels far above national standards and the city ranking among the most polluted capitals in the world.
Reason (R) is also true: stubble (paddy residue) burning in Punjab and Haryana adds smoke and fine particles to Delhi's air, especially in October–November when north-westerly winds carry it towards the city.
However, R does not explain A. Stubble burning is a seasonal contributor, while Delhi's air is poor throughout the year because of vehicular emissions, road and construction dust, industries, power plants, waste burning and winter temperature inversions. The long-term, year-round deterioration cannot be accounted for by a seasonal agricultural practice in neighbouring states.
Hence, the answer is Both (A) and (R) are correct but (R) is not the correct explanation of (A).
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