Ocean Currents Question Preview (ID: 37742)


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surface currents are caused by
a) floods
b) warm water
c) the wind
d) the equator

Ocean currents flow from east to west near the
a) Gulf Stream
b) poles
c) equator
d) against Earth's rotation

Ocean currents in the Northern and Southern Hemispheres turn
a) from west to east
b) in opposite directions
c) clockwise
d) against earth's rotation.

As water gets denser, how does it move?
a) expands toward warmer water
b) sinks toward ocean floor
c) gets pushed toward poles
d) gets pulled up with evaporation

Which currents carry warm water away from the equator?
a) deep currents
b) evaporation
c) surface currents
d) freezing.

Compared to surface currents, deep currents...
a) colder and less dense
b) warmer and less dense
c) colder and more dense
d) warmer and denser

How do warm water currents affect the coastal areas along which they flow?
a) the create greater rainfall along the coast
b) they create unusually cool climates for the latitude.
c) they create unusually warm climates for the latitude
d) they make coastal climates cooler than inland climates.

surface currents are NOT controlled by
a) the Coriolis effect
b) water density
c) global winds
d) continental delfelction

Southern California has cooler temperatures than Arizona which is at the same latitude. What causes the temperature difference?
a) cold water surface current off California's coast
b) winds that form high in the California mountains
c) the shade provided by the large number of trees in California.
d) the large longshore current running along California's coast.

Which of the following is caused by temperature differences as well as differences in salinity.
a) Continental Deflection
b) Corliolis effect
c) Deep currents
d) Surface currents

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