As air sinks in a valley fog it
A)cools adiabatically but it is still cooler than surrounding air; surrounding air is cooled to the dew-point.
B)warms adiabatically but it is still cooler than surrounding air; surrounding air is cooled to the dew-point.
C)warms adiabatically but it is still warmer than surrounding air; surrounding air is warmed to the dew-point.
D)cools adiabatically but it is still warmer than surrounding air; surrounding air is cooled to the dew-point.

Question

Quizplus · Accepted Answer

As air sinks, it warms adiabatically. However, it can still be cooler than the surrounding air, which can lead to the surrounding air cooling to its dew point, forming fog.

As Air Sinks in a Valley Fog It