Site MapHelpFeedbackOnline Quiz
Online Quiz
(See related pages)

1
Longshore transport of sand along a beach
A)occurs along every beach in the world.
B)occurs along beaches only in the northern Hemisphere.
C)occurs along beaches only in the southern Hemisphere.
D)is a back and forth movement of sand as waves wash up a beach at an angle, then wash back toward sea.
2
As waves approach shore:
A)their height increases and their length decreases
B)their height decreases and their length increases
C)their height and length remain unchanged
D)they break before reaching shore.
3
Waves approach a shoreline traveling in this direction
A)always perpendicular to the shoreline
B)the same direction as the prevailing wind direction
C)at approximately 60 degree angles to the shoreline
D)at approximately 30 degree angles to the shoreline
4
How is the shape of a shoreline affected by the natural aging process?
A)it becomes more irregular
B)it gets longer
C)it becomes straighter
D)it does not change
5
You own shoreline property on a coast where the longshore current is dominantly south to north. After an absence of a year, you returned to find that your boat dock no longer reached the water, but was surrounded by beach sand. What is the most likely explanation?
A)the neighbor to the north built a jetty or breakwater
B)the neighbor to the south built a jetty or breakwater
C)a dam was built in a nearby river
D)sea level rose several feet higher
6
Wave refraction occurs
A)in deep water
B)as a result of longshore current
C)only along straight beaches
D)when wave-induced orbital motion of water affects the bottom
7
Wave refraction is the process which
A)concentrates wave energy on pocket beaches (bays)
B)causes deep water waves to move faster
C)causes shallow water waves to bend
D)all of the above
8
Wave energy comes from
A)tides
B)wind
C)ocean currents
D)longshore currents
9
Beach erosion can be caused by
A)interruption of longshore currents
B)deposition of stream sediment
C)deep water waves
D)lowered water level
10
Wave energy along coastlines is concentrated
A)on headlands
B)in bays
C)near river mouths
D)in submarine canyons
11
Erosion of a beach occurs when
A)more sand is added to the beach than what is removed by longshore transport
B)streams discharging near the beach have an increased sediment load
C)less sand is added to the beach than what is removed by longshore transport
D)technically, a beach can never erode.
12
A longshore current
A)carries sand down a deep sea canyon and away from shore
B)flows out to sea from the mouth of a river
C)forms where waves approach the beach at an angle
D)all of the above
13
Which is most easily eroded by wave action?
A)sea wall
B)barrier island
C)groin
D)breakwater
14
Tidal energy comes from
A)gravity
B)wind
C)ocean currents
D)longshore currents
15
A wave-cut platform could be evidence of
A)higher sea level in the past
B)lower sea level in the past
C)longshore current activity
D)changing tides
16
A drowned valley could be evidence of
A)higher sea level in the past
B)lower sea level in the past
C)longshore current activity
D)changing tides
17
Which part of a coastline is most likely to contain coastal cliffs?
A)bay
B)barrier island
C)headland
D)delta
18
Most barrier islands
A)are stable
B)are sinking
C)are gradually moving seaward
D)are gradually moving landward
19
Most drowned valleys contain
A)deltas
B)estuaries
C)barrier islands
D)all of the above
20
Why is the sea level dropping in certain places like Scandinavia?
A)global warming
B)shoreline erosion
C)sediment deposition
D)postglacial rebound
21
Why is sea level rising in much of the world?
A)global warming
B)shoreline erosion
C)sediment deposition
D)postglacial rebound
22
Temporary sea-level rise due to a hurricane is called
A)tsunami
B)surge
C)neap tide
D)spring tide
23
Estuaries
A)form behind barrier islands.
B)are surrounded by tall cliffs.
C)are protected from high and low tide.
D)mix fresh water and salt water.
24
During periods of glacial advance,
A)sea level will tend to drop
B)sea level will tend to rise
C)sea level will not change
D)erosion of shorelines will increase
25
Vacation homes on barrier islands are
A)well-protected from storms.
B)prohibited by law.
C)vulnerable to wave erosion.
D)uncommon and not a problem.





To learn more about the book this website supports, please visit its Information Center.
(c)2008 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


Environmental Geology 8eOnline Learning Center

Home > Chapter 7 > Online Quiz