Tide is（）in direction ENE.

The winds with the greatest effect on the set，drift，and depth of the equatorial currents are the（）.

A.doldrums
B.horse latitudes
C.trade winds
D.prevailing westerlies

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The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.

A.temperature
B.density
C.deflection
D.speed

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