Paper 1 · People, Development and Environment
UGC NET December 2023 (08.12.2023) Shift-I
Temperature inversion in the atmosphere mainly causes:
ADust storm
BDispersion of air pollutants
CAccumulation of air pollutants ✓ Correct
DOzone depletion
Correct answer: (C) Accumulation of air pollutants — Temperature inversion mainly causes accumulation of air pollutants, so that is the answer.
Explanation
★Temperature inversion mainly causes accumulation of air pollutants, so that is the answer.
★Normally air cools with height, letting warm surface air rise and disperse pollutants.
★In a temperature inversion a warm layer sits above cooler surface air.
★This warm cap stops the surface air from rising.
★So pollutants are trapped and build up near the ground.
★Hence inversion causes accumulation, not dispersion, of air pollutants.
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