Winds in the upper atmosphere are:
A) westerly only in the northern hemisphere.
B) westerly only in the southern hemisphere.
C) westerly in both the northern and southern hemisphere.
D) faster in summer than in winter in both the northern and southern hemisphere.
Question 2
Rossby waves:
A) usually move from west to east.
B) usually occur in Difficulty:
Global sets of ten or more.
C) change little from season to season.
D) tend to reinforce normal weather patterns at middle latitudes.