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Ocean Currents
Test Description: Questions over surface currents and deep currents.
Instructions: Answer all questions to get your test result.
1) What are surface currents formed by?
A
the moon's gravity
B
the sun's gravity
C
Global winds
D
increased water density
2) Streamlike movements of the water that occur at or near the surface of the ocean are called
A
jet currents
B
Coriolis currents
C
deep currents
D
surface currents
3) Streamlike movements of ocean water far below the surface are called
A
jet currents
B
deep currents
C
Coriolis currents
D
surface currents
4) Deep currents form
A
only near the equator
B
along the ocean floor
C
from underwater volcanic eruptions
D
as undertows recede from shore
5) Which of the following does NOT control surface currents?
A
tides
B
continental deflections
C
global wind
D
Coriolis effect
6) Most ocean waves are formed by
A
earthquakes
B
wind
C
impacts of cosmic bodies
D
landslides
7) What are waves that form when a large volume of ocean water is suddenly moved up or down?
A
Swells
B
Tsunamis
C
Storm surges
D
Whitecaps
8) Which of the following could cause a tsunami?
A
an earthquake
B
heavy winds
C
a decrease in the salinity of the water
D
an increase in the salinity of the water
9) The highest point of a wave is called the
A
wavelength
B
crest
C
waveheight
D
trough
10) The lowest point of a wave is called the
A
crest
B
waveheight
C
trough
D
wavelength
*select an answer for all questions
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