UGC NET Questions (Paper – 1)

Statements A, B and D give a realistic picture of air pollution control measures. Cleaner fuels and technologies lower emissions, control devices like filters and scrubbers capture particulates and standards with monitoring ensure compliance. Statement C is incorrect because merely increasing stack height disperses pollutants but does not eliminate them, and may shift the problem elsewhere. Thus, the combination that includes A, B and D only is correct.

Option A:
Option A is correct because it recognises the technological and regulatory pillars of air quality management while excluding the simplistic and misleading view in C. It emphasises that emission reduction, control equipment and governance all matter. Therefore, it matches the conceptual understanding of pollution control.

Option B:
Option B is incorrect because it pairs A with C and omits B and D. In doing so, it treats C as correct, although stack height increase alone is not an adequate solution and does not remove pollutants from the system. This makes the combination unsuitable.

Option C:
Option C is incorrect as it accepts both B and C along with D. While B and D are correct, endorsing C suggests that chimney height alone is enough, which conflicts with scientific and policy approaches to air pollution control.

Option D:
Option D is incorrect because it includes A, C and D and leaves out B. It still treats C as correct and fails to acknowledge the role of pollution-control devices explicitly mentioned in B, leading to an incomplete and partly wrong combination.