A.Steady，light to moderate winds
B.Frequent calms
C.Clear skies
D.Low humidity
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A.Magnetic field at the North Pole
B.Gulf Stream
C.Earth's rotation
D.Arctic cold fronts
A.Coming cold weather conditions
B.A warm front weather condition
C.High pressure conditions
D.Scattered cumulus cloudsduring the day
A.light，variable winds with little or no humidity
B.strong，gusty winds that blow from the same general direction all year
C.steady winds that reverse direction semiannually
D.strong，cyclonic winds that change direction to conform to the passage of an extreme low pressure system
A.forest fires
B.smoke from industrial areas
C.dust or sand storms
D.water droplets with the relative humidity more than 95%
A.clockwise direction
B.northeasterly direction
C.northerly direction
D.counterclockwise direction
最新試題
The moisture equilibrium chart can be used to determine the（）.
Which of the following is not a wind（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
What kind of pressure systems travel in easterly waves（）.
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
In the Northern Hemisphere a wind is said to veer when the wind（）.
The direction of prevailing winds in the Northern hemisphere is caused by the（）.
You have determined that you are in the right semicircle of a tropical cyclone in the Northern Hemisphere.What action should you take to avoid the storm（）.
The southeast trade winds actually blow toward the（）.
The wind is（）and decreasing.