Maharashtra State PSC Model Paper 3

The correct answer is option 3, i.e 1 and 3 only.

• Temperature inversion is a reversal of the normal behavior of temperature in the troposphere, in which a layer of cool air at the surface is overlain by a layer of warmer air. (Under normal conditions, temperature usually decreases with height).
• Ideal conditions for temperature inversion-
  • Long nights, so that the outgoing radiation is greater than the incoming radiation.
  • Clear skies, which allow unobstructed escape of radiation.
  • Calm and stable air, so that there is no vertical mixing at lower levels.