单项选择题

A.air being warmed above the dew pointB.saturation of c……

Advection fog is most commonly caused by（）.

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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热门试题

单项选择题Advection fog holds longest over which portions of the lakes? （）

A.Northwest
B.Southeast
C.Northeast
D.Southwest

单项选择题According to Buys Ballot’s law，when an observer in the Northern Hemisphere experiences a northwest wind，the center of low pressure is located to the（）.

A.northeast
B.west-southwest
C.northwest
D.south-southeast

单项选择题A warm air mass is characterized by（）.

A.stability
B.instability
C.gusty winds
D.good visibility

单项选择题A series of brief showers accompanied by strong，shifting winds may occur along or some distance ahead of a(n)（）.

A.upper front aloft
B.cyclone
C.occluded front
D.cold front

单项选择题A sea breeze is a wind（）.

A.that blows towards the sea at night
B.that blows towards an island during the day
C.caused by cold air descending a coastal incline
D.caused by the distant approach of a hurricane