A.air being warmed above the dew point
B.saturation of cold air by rain
C.a rapid cooling of the air near the surface of the Earth at night
D.warm moist air being blown over a colder surface
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A.Northwest
B.Southeast
C.Northeast
D.Southwest
A.only one high and one low water occur during a lunar day
B.the high tide is higher and the low tide is lower than usual
C.the high tide and low tide are exactly six hours apart
D.two high tides occur during a lunar day
A.hydraulic current
B.rectilinear current
C.rotary current
D.harmonic current
A.Papagayo
B.fall wind
C.foehn
D.williwaw
A.Tehuan tepecer
B.Papagayo
C.Norther
D.Pampero
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The presence of stratus clouds and a dying wind will usually result in（）.
The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.
The currents are（）mosoonal origin．
Low pressure disturbances，which travel along the intertropical convergence zone，are called（）.
Advection fog is most commonly caused by（）.
Advection fog holds longest over which portions of the lakes?（）
The height of a wave is the vertical distance（）.
In most cases，the direction of the apparent wind lies between the bow and（）.
The place where a channel moves from along one bank of the river over to the other bank of the river is called a（）.
In the Northern Hemisphere the major ocean currents tend to flow（）.