Earth Science: The Water Planet, Book H

Section 2: Ocean Currents

Self-Check Quiz-Eng.

1
Cold water rises to the surface in __________.
A)density currents
B)temperature currents
C)depth currents
D)upwellings
2
The Coriolis effect is caused by __________.
A)temperature changes
B)density changes
C)salinity changes
D)Earth's rotation
3
Currents south of the equator are turned counterclockwise because of __________.
A)cold water rising
B)the cold polar regions
C)the warm equator
D)the Coriolis effect
4
West coast cold surface currents originate __________.
A)near the poles
B)near the equator
C)deep within the ocean
D)from the atmosphere
5
Warm surface currents affect the water temperature along the __________ coast of continents.
A)north
B)south
C)west
D)east
6
When salt water changes in density, a(n) __________ occurs.
A)density current
B)Coriolis effect
C)upwelling
D)surface current
7
When seawater freezes, which type of current is produced?
A)surface
B)upwelling
C)density
D)coastal
8
Which of the following does NOT have an effect on the density of seawater?
A)evaporation of water
B)freezing of water
C)heating of water
D)motion of water
9
Ocean circulation resulting from wind blowing along the coast is called a(n) __________.
A)density current
B)upwelling
C)coastal current
D)surface current
10
Density currents cannot form by a(n) __________.
A)increase in salinity
B)decrease in temperature
C)windstorm
D)sinking of cold water
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