Earth Science: The Water Planet, Book H

Chapter 4: Ocean Motion

Ocean Motion

1
When salt water changes in density, a(n) __________ occurs.
A)density current
B)upwelling
C)Coriolis effect
D)surface current
2
Warm surface currents affect the water temperature along the __________ coast of continents.
A)north
B)west
C)south
D)east
3
Which gas that is found in ocean water does NOT come from the atmosphere?
A)carbon dioxide
B)chlorine
C)nitrogen
D)oxygen
4
Ocean circulation resulting from wind blowing along the coast is called a(n) __________.
A)density current
B)upwelling
C)surface current
D)coastal current
5
Which of the following statements about waves is NOT true?
A)Waves can continue to increase in height as long as wind is there.
B)Waves continue to move for long distances even after the wind stops.
C)Waves can only travel a short distance before disappearing.
D)Waves continue to form as long as the wind is blowing.
6
Which of the following does NOT have an effect on the density of seawater?
A)motion of water
B)freezing of water
C)evaporation of water
D)heating of water
7
Tides are most noticeable __________.
A)in shallow bodies of water
B)during spring tides
C)in small bodies of water
D)near the equator
8
Which of the following is NOT true regarding a wave passing through an area away from shore?
A)The water particles remain in the same place.
B)The energy of the wave continues to move forward.
C)Floating objects and water particles move forward.
D)Floating objects rise and fall with the wave but do not move forward.
9
Cold water rises to the surface in __________.
A)depth currents
B)temperature currents
C)upwellings
D)density currents
10
West coast cold surface currents originate __________.
A)near the equator
B)near the poles
C)deep within the ocean
D)from the atmosphere
11
The height of waves depends on all of the following EXCEPT __________.
A)the temperature of the water
B)the distance over which the wind blows
C)the speed of the wind
D)the length of time the wind blows
12
Currents south of the equator are turned counterclockwise because of __________.
A)the Coriolis effect
B)cold water rising
C)the warm equator
D)the cold polar regions
13
A __________ is a collapsing wave.
A)tide
B)breaker
C)trough
D)crest
14
The lowest point of a wave is called the __________.
A)trough
B)crest
C)shallow
D)breaker
15
Energy is carried through matter or space by a rhythmic movement called a __________.
A)wave
B)crest
C)tide
D)breaker
16
Ocean water might have come from all of the following EXCEPT _________.
A)torrential rains
B)volcanic eruptions
C)land basins
D)water vapor
17
Salinity measures the amount of __________ dissolved in seawater.
A)salt
B)oxygen
C)sodium
D)hydrogen
18
When seawater freezes, which type of current is produced?
A)coastal
B)surface
C)density
D)upwelling
19
Tides are caused by __________.
A)the gravitational pull of the Sun and the Moon
B)the rise and fall of water
C)the interaction between sand and seawater
D)changes in ocean salinity
20
Dissolved salts and gases can enter seawater by all of the following EXCEPT __________.
A)organism respiration
B)ions from erupting volcanoes
C)ions from dissolved rocks
D)desalination
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.