An air parcel is considered $\underline {\text { unstable }}$ when it
A) either remains as it is, or changes its initial position.
B) continues to rise until it reaches an altitude at which the surrounding air has a similar density.
C) resists displacement upward.
D) ceases to ascend.

Question

Quizplus · Accepted Answer

An air parcel is considered unstable when it continues to rise until it reaches an altitude where the surrounding air has a similar density. This occurs because the air parcel is warmer and less dense than the surrounding air, causing it to continue to rise until it reaches a stable environment. So, option B is the correct option.

An Air Parcel Is Considered unstable ‾\underline {\text { unstable }} unstable ​ When It A) Either Remains as It Is, or Changes

An Air Parcel Is Considered $\underline {\text { unstable }}$ When It
A) Either Remains as It Is, or Changes