Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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The Gulf Stream is what kind of current?
a. | a density current | c. | a fresh water ocean current | b. | a surface
current |
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2.
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London is much farther north than
Chicago, yet it is warmer in London in the winter than it is in Chicago. Why is this true?
a. | London's climate is affected by warm
ocean currents that flow from the south. | b. | The
Sun's rays shine at a higher angle in London than in Chicago. | c. | Waters around England are warmed by many underwater volcanoes.
| d. | London receives more sunshine in the winter
than other places farther south. |
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3.
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In the Northern Hemisphere, currents curve to the right because of the
a. | Coriolis effect. | b. | density. | c. | longshore
drift. | d. | moon's gravity. |
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4.
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The Gulf Stream and North Atlantic Drift both affect Europe's climate. What
type of current are they?
a. | warm deep currents | b. | warm surface currents | c. | cold surface
currents | d. | cold deep currents |
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5.
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What two forces cause the Gulf Stream to carry warm water to Europe?
a. | the West Winds and the Trade Winds | c. | the prevailing winds and the
coriolis effect | b. | the sun and the wind | d. | surface currents and density currents |
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6.
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What is the main cause of the Gulf Stream?
a. | the moon’s gravity | c. |
prevailing winds that blow in regular
directions | b. | storms | d. | winds that blow now and then |
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7.
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A large stream of moving water that flows through the oceans is called
a(n)
a. | undertow. | b. | tide. | c. | wave. | d. | current. |
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8.
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What causes the winds and the currents to curve?
a. | huge seamounts | c. | the continents | b. | the coriolis effect | d. | the Gulf Stream |
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9.
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The map shows ocean currents in the northern
Atlantic Ocean. Which location most likely has the warmest climate?

a. | location A | c. | location C | b. | location B | d. | location D |
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10.
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The phenomenon that causes the
winds to be deflected to the left or right due to Earth's rotation is called
a. | the Coriolis effect.
| c. | the nebular hypothesis.
| b. | differentiation.
| d. | Steno's laws. |
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11.
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Which natural force creates
surface ocean currents?
a. | gravity | c. | sunlight | b. | wind | d. | earthquakes |
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12.
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What is a cause of waves and currents but not tides?
a. | the sun’s cravity | c. | the moon’s
gravity | b. | Earth’s gravity | d. | wind |
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13.
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How would the climate change in Europe if the Gulf Stream were to stop?
a. | there is no way to know | c. | it would not
change | b. | it would be much colder | d. | it would be much warmer |
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14.
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The Gulf Stream is an example of a
a. | gyre | c. | prevailing wind current | b. | coriolis | d. | density current |
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15.
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A scientist who studies the ocean is
a. | a geologist | c. | a choreographer | b. | an oceanographer | d. | an astronomer |
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