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1. Which of the following is true of the Polar Front? It represents the boundary

ID: 154187 • Letter: 1

Question

1. Which of the following is true of the Polar Front?

It represents the boundary between polar easterlies and the westerlies

It is discontinuous in the Southern Hemisphere due to the presence of large land masses

It is more prominent during the winter than the summer

It is associated with fair weather

Both A and C are true

2. Surface high pressure is characterized by:

convergence aloft, divergence at the surface

divergence aloft, surface convergence

convergence aloft, surface convergence

divergence aloft, surface divergence

3. Which of the following is/are true of Rossby waves in the Northern Hemisphere?

They allow warm air to move north and cold air to move south

There can be as few as three and as many as six in the hemisphere at any one time

Are waves that form in the polar jet

Leads to zonal flow of air

All answers except for choice D are true

A.

It represents the boundary between polar easterlies and the westerlies

B.

It is discontinuous in the Southern Hemisphere due to the presence of large land masses

C.

It is more prominent during the winter than the summer

D.

It is associated with fair weather

E.

Both A and C are true

Explanation / Answer

Q.3

A. divergance aloft surface convergance because in that high pressure near the surface winds are covergance and above the surface winds are divergance.