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