Multiple choice

If ELR is same as DALR, the atmosphere is said to be

  1. stable

  2. unstable

  3. neutral

  4. none of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When Environmental Lapse Rate equals Dry Adiabatic Lapse Rate, a displaced air parcel will have the same temperature as its surroundings at all levels. Since there's no temperature difference to create buoyancy, the parcel remains in its new position, defining neutral atmospheric stability.