In which of the following conditions is the polar jet stream strongest in the northern hemisphere?
A)when air temperatures on opposite sides of the polar front are about equal
B)when air north of the polar front is much colder than air south of the polar front
C)when air north of the polar front is much warmer than air south of the polar front
D)when relative humidity values on opposite sides of the polar front are about equal

Question

Quizplus · Accepted Answer

The polar jet stream is strongest when there is a large temperature gradient between air masses on either side of the polar front. Option B, where air north of the polar front is much colder than air south of it, creates a large temperature gradient and therefore strengthens the polar jet stream.

In Which of the Following Conditions Is the Polar Jet