An ascending parcel of air tends to cool by expansion, while a descending parcel of air tends to heat by compression.

Question

Quizplus · Accepted Answer

This statement is true. As the air rises in the atmosphere, the air pressure decreases, which results in the expansion of the air parcel. This expansion causes the air to cool due to the decrease in pressure. On the other hand, when an air parcel descends, the air pressure increases, causing the air to compress. This compression leads to an increase in temperature in the descending air parcel.

An Ascending Parcel of Air Tends to Cool by Expansion