Warm air rises and cool air sinks.So,when an air parcel rises it becomes

Question

Quizplus · Accepted Answer

When an air parcel rises, it expands and experiences a decrease in pressure. As the pressure decreases, the temperature of the air parcel decreases as well. This is known as adiabatic cooling. Therefore, the correct choice is A.  Additionally, as the temperature drops, the air parcel becomes denser than the surrounding air and sinks back down. This process is known as convection and is responsible for the formation of clouds and weather systems. The stability of the atmosphere is determined by the temperature gradient and lapse rate, with cooler air being more stable and warmer air being less stable.

Warm Air Rises and Cool Air Sinks