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Test Ch 13 Part1
Test Description: Ch 13
Instructions: Answer all questions to get your test result.
1) A surface current is set in motion by differences in salinity and temperature
A
True
B
False
2) A surface current moves cold water away from Earth's poles.
A
False
B
True
3) Deep ocean currents slowly move water along the bottom of Earth's oceans.
A
False
B
True
4) An upwelling moves nutrients from the surface to deeper waters.
A
False
B
True
5) The Gulf Stream moves warm water away from the poles to give Great Britain a mild climate
A
False
B
True
6) Ocean water contains
A
dissolved gases only
B
both dissolved solids and dissolved gases
C
dissolved solids only
D
neither dissolved solids nor dissolved gases
7) Which of the following would lower the salinity of a shallow part of an ocean?
A
ice forming on the surface of the ocean
B
damming the mouth of a nearby river
C
large amounts of evaporation
D
large amounts of rainfall
8) In general, how does ocean temperature change with depth?
A
Deep water is less dense than water at the surface.
B
Deep water is more dense than water at the surface.
C
Deep water is cooler than water at the surface.
D
Deep water is warmer than water at the surface.
9) Which of these best describes the ocean floor?
A
warm and dense
B
gently sloping
C
smooth and flat
D
many features
10) Which of these would be most useful to explore a deep and difficult-to-reach section of the mid-ocean ridge?
A
scuba divers
B
robots with cameras
C
researchers on submarines
D
weighted lines
11) Most ocean waves are the result of
A
differences in water temperature and density
B
the transfer of energy from the water to the air above
C
the transfer of energy from the wind to the water below
D
differences in salinity and temperature
12) Waves breaking along a shore are caused by an increase in their
A
wave height
B
speed
C
wavelength
D
energy
13) What causes tides?
A
the gravitational pull of Earth and Earth's waters on the Sun
B
the gravitational pull of the Moon on Earth and Earth's waters
C
differences in ocean water salinity and temperature
D
differences in ocean water temperature and density
14) The tidal bulge is smaller than normal during a
A
neap tide
B
full moon
C
new moon
D
spring tide
15) The difference in height between a high tide and the next low tide is called the
A
tidal range
B
tidal slope
C
spring tide
D
neap tide
16) The Moon has a greater effect on Earth's tides than the Sun because the Moon is
A
smaller than the Sun
B
closer to Earth than the Sun
C
larger than Earth
D
farther from Earth than the Sun
17) Water waves are often a transfer of
A
water molecules from moving air
B
energy from the shore
C
water molecules from the shore
D
energy from moving air
18) A surface current near Earth's equator is set in motion by
A
the Moon's gravity
B
differences in salinity
C
global winds
D
spring tides
19) Which of the following affects climate the most?
A
waves
B
tides
C
salinity
D
currents
20) Which of the following best describes El NiƱo?
A
a global change in Earth's weather conditions
B
constant changes in the neap tides of the Pacific
C
stronger than normal winds all over Earth's surface
D
stronger than normal winds in the Pacific
*select an answer for all questions
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