The polar front:
A) is not associated with the polar jet stream.
B) is a region of small changes in the slope of pressure surfaces.
C) is a region marked by a sharp change in horizontal temperature.
D) is a boundary between two regions of cold air.
Question 2
Semi-permanent pressure cells:
A) have no impact on major weather patterns.
B) can change substantially from summer to winter.
C) stay in one place.
D) maintain the same intensity year-round.