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Oceanography
Test Description: Oceanography Questions
Instructions: Answer all questions to get your test result.
1) The two most common ions found in ocean water are
A
potassium and calcium
B
chloride and sodium
C
magnesium and sodium
D
phosphate and nitrate
2) Animals that live on the bottom of the ocean are called
A
benthos
B
zooplankton
C
nekton
D
phytoplankton
3) Fish are abundant in areas where the ocean is upwelling because it
A
brings nutrients to the surface
B
causes surface turbulence that attracts fish
C
causes currents that carry fish into the area
D
changes tidal flow in the area
4) What is the technology used to map the ocean floor called?
A
laser beams
B
doppler radar
C
sonar
D
seismology
5) Why is the surface temperature of the oceans more variable than the water near the ocean floor?
A
Most energy is exchanged at the surface.
B
The salt concentration is more variable at the surface.
C
The water is less dense at the surface.
D
Most animals live near the surface.
6) During which of the following phases of the moon will the tides be the highest?
A
1st Quarter
B
full moon
C
crescent moon
D
gibbous moon
7) What affects the Earth's water?
A
moon phases
B
tilt of the Earth
C
Earth's revolution around the Sun
D
Earth's rotation on its axis
8) All of the following features of the ocean indicate tectonic activity except
A
seamounts
B
abyssal plains
C
mid-oceanic ridges
D
trenches
9) All of the following are sources of energy derived from the ocean except
A
tides
B
waves
C
coal
D
thermal
10) What type of current is the Gulf Stream?
A
cold density (deep) current
B
warm surface current
C
warm density (deep) current
D
cold surface current
*select an answer for all questions
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