The polar jet stream is:
above the polar front
above the boundary of warm and cold air
north of the core of the upper
not continuous around Earth
The so-called "winds of commerce" are the __________ winds.
Which of the following does NOT act upon winds that blow far above Earth's surface?
C. pressure gradient
Which of the following occurs closest to the Equator?
A. polar front
B. subpolar low
E. subropical high
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