Oceanography (Oceans, Currents, Tides) NDA Questions

NDA Physical Geography

Oceanography (Oceans, Currents, Tides) MCQ Questions


7.
What is the term for the regular rise and fall of sea levels?
A.
Tide
B.
Current
C.
Wave
D.
Tsunami
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ANSWER :
A. Tide
8.
What causes ocean tides?
A.
Earth's rotation
B.
Earth's axial tilt
C.
Wind patterns
D.
Gravitational pull of the Moon
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ANSWER :
D. Gravitational pull of the Moon
9.
Pick out the wrong statement:
A.
Ocean currents can affect the climate
B.
The Sun's gravity has a smaller effect on tides compared to the Moon
C.
The Moon's gravity affects tides
D.
Tides are only caused by the Sun's gravitational pull
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ANSWER :
D. Tides are only caused by the Sun's gravitational pull
10.
The movement of water in the ocean is known as ocean ________.
A.
Circulation
B.
Flow
C.
Wave
D.
Current
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ANSWER :
D. Current
11.
What are the two main factors that determine the density of ocean water?
A.
Temperature and salinity
B.
Wind speed and moon's gravity
C.
Earth's rotation and salinity
D.
Air pressure and wind
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ANSWER :
A. Temperature and salinity
12.
Which ocean current is responsible for cooling the western coast of North America?
A.
California Current
B.
Gulf Stream
C.
Kuroshio Current
D.
Antarctic Circumpolar Current
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ANSWER :
A. California Current