In the Northern Hemisphere, the polar jet stream is strongest when ____.
A)air north of the polar front is much colder than air south of the polar front
B)air north of the polar front is much warmer than air south of the polar front
C)air temperatures on opposite sides of the polar front are about equal
D)air temperatures on the East Coast of the United States are much colder than on its West Coast
E)it forms during the summer months

Question

Quizplus · Accepted Answer

The polar jet stream is strongest when there is a significant temperature difference between the air masses north and south of the polar front, with colder air to the north and warmer air to the south. This temperature gradient intensifies the jet stream.

In the Northern Hemisphere, the Polar Jet Stream Is Strongest