A.Pressure gradient
B.Coriolis effect
C.Aurora borealis
D.Ballistic deflection
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A.Steady，light to moderate winds
B.Frequent calms
C.Clear skies
D.Low humidity
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%
最新試題
The wind is（）and decreasing.
What kind of pressure systems travel in easterly waves（）.
The passing of a low pressure system can be determined by periodically checking the（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
In regions near the poles，the winds are generally described as（）.
The moisture equilibrium chart can be used to determine the（）.
The doldrums are characterized by（）.
Monsoons are characterized by（）.
In the Northern Hemisphere，if your vessel is in a hurricane’s navigable semicircle it should be positioned with the wind on 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（）.