A.North Cape Current
B.Labrador Current
C.Greenland Current
D.North Atlantic Current
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A.must be from dead ahead
B.speed must be zero
C.must be from dead astern
D.must be on the beam
A.ahead and equal to the ship's speed
B.astern and equal to the ship's speed
C.ahead and equal to twice the ship's speed
D.astern and equal to twice the ship's speed
A.spring,around late evening
B.spring,around early evening
C.fall,around early morning
D.fall,around midday
A.always forms over water
B.is formed by a temperature inversion
C.is thinnest at the surface
D.dissipates during the evening
A.prevailing westerlies
B.geostrophic winds
C.doldrums
D.horse latitudes
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The horse latitudes are characterized by().
The cold ocean current which meets the warm Gulf Stream between latitudes 40°and 43°N to form the cold wall is called the().
The edge of a hurricane has overtaken your vessel in the Gulf of Mexico,and the northwest wind of a few hours ago has shifted to the west. This is an indication that you are located in the().
Cold water flowing southward through the western part of the Bering Strait between Alaska and Siberia is joined by water circulating counterclockwise in the Bering Sea to form the().
A swift current occurring in a narrow passage connecting two large bodies of water which is produced by the continuously changing difference in height of tide at the two ends of the passage is called a(n)().
The height of a wave is the vertical distance().
The direction of the southeast trade winds is a result of the().
Steam fog is most likely to occur on the Mississippi and Ohio Rivers in().
Low pressure disturbances,which travel along the intertropical convergence zone,are called().
The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind().