2025 · Q34
Which of the following statements with reference to Surface inversion of temperature is/are correct?
- 1It causes instability in the lower layers of the atmosphere.
- 2This inversion commonly lasts for a few hours until the Sun comes up. Select the answer using the code given below:
General KnowledgeGeography
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
Statement 2 alone is correct. A temperature inversion creates stable, not unstable, conditions in the lower atmosphere, because cold, dense air is trapped beneath warmer air and vertical motion is suppressed. Such nocturnal radiation inversions typically last only a few hours and break up after sunrise, when solar heating warms the ground and mixes the air.