Which of the following undergoes a downward motion during an upper-air front?

Question

Quizplus · Accepted Answer

During an upper-air front, the troposphere undergoes upward motion while the stratosphere undergoes downward motion. Therefore, the tropopause (which separates the troposphere and stratosphere) would undergo a downward motion during an upper-air front. The low-level jet is a horizontal wind pattern and would not be affected by the vertical motion of an upper-air front. The mesopause and stratopause are the boundaries between other layers of the atmosphere and would not be directly affected by an upper-air front.

Which of the Following Undergoes a Downward Motion During an Upper-Air