When an air parcel rises without exchanging heat or mass with its surroundings, __________ takes place.
A)adiabatic expansion
B)orographic lifting
C)atmospheric instability
D)a squall line

Question

Quizplus · Accepted Answer

Adiabatic expansion occurs when an air parcel rises without exchanging heat or mass with its surroundings. As the parcel rises and the air pressure decreases, the parcel expands, causing it to cool due to the decrease in temperature with altitude. This process is called adiabatic cooling.

When an Air Parcel Rises Without Exchanging Heat or Mass