11. In the Northern Hemisphere, air tends to circulate ________ around a high-pr
ID: 159654 • Letter: 1
Question
11. In the Northern Hemisphere, air tends to circulate ________ around a high-pressure system and ________ around a low-pressure system.
a. clockwise, counterclockwise
b. counterclockwise, clockwise
c. clockwise, clockwise
d. counterclockwise, counterclockwise
12. Immediately after a cold front passes a surface weather station during winter, the temperature usually ________ and the pressure usually ________.
a. increases, decreases
b. decreases, increases
c. decreases, stays the same
d. increases, stays the same
e. decreases, decreases
13. Immediately after a cold front passes a surface weather station, the dew point usually ________ and the wind direction usually ________.
a. increases, changes
b. decreases, changes
c. decreases, stays the same
d. increases, stays the same;
14. Air masses are bred from regions where air pressure is characteristically ________.
a. High
b. Low
c. neither high nor low
d. zero
15. Which of the following could indicate the presence of a front on a weather map?
a. large temperature and moisture gradients
b. a pressure trough; converging winds at the surface
c. cloudy skies and precipitation
d. All of the above are correct.
Explanation / Answer
11.a. clockwise, counterclockwise
14.a. High
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