Section #: 16.1
Shoreline Features
Practice Test
1.
Why is sea level still rising?
a.
global warming
b.
the size of world glaciers is growing
c.
the destruction of ozone in the atmosphere
d.
global cooling
Hint
2.
What determines the size of sediment particles on a beach?
a.
wave energy
b.
tidal range
c.
amount of sediment
d.
width of dune
Hint
3.
A groin is used to __________.
a.
provide anchorage for small boats
b.
interrupt the natural longshore transport of sand
c.
protect a harbor
d.
protect the beach from storm waves
Hint
4.
What is the purpose of the structure shown in the figure?
a.
to redirect current
b.
to anchor boats
c.
to protect the shore
d.
to trap beach sand
Hint
5.
According to the map, what can be said about the coastline over the past 20,000 years?
a.
It has expanded.
b.
It has receded.
c.
It has remained the same.
d.
it has definitely fluctuated
Hint
6.
What determines the composition of sediment particles on a beach?
a.
wave energy
b.
tidal range
c.
sediment source
d.
amount of sediment
Hint
7.
What is the purpose of a breakwater?
a.
protect the beach from storm waves
b.
protect a harbor
c.
interrupt the natural longshore transport of sand
d.
provide anchorage for small boats
Hint
8.
Straight wave crests bend toward headlands because of a process called __________.
a.
concentration
b.
erosion
c.
wave reflection
d.
wave refraction
Hint
9.
Which structure is pictured in the figure?
a.
breakwater
b.
groin
c.
seawall
d.
jetty
Hint
10.
How much would sea level rise if all the world's polar ice melted?
a.
10 m
b.
2 m
c.
70 m
d.
700 m
Hint
11.
What is at each end of a tombolo?
a.
a spit and the mainland
b.
a peninsula and a barrier island
c.
the mainland and an island
d.
an island and a bay mouth bar
Hint
12.
What is a narrow bank of sand that projects into the ocean called?
a.
a bay mouth bar
b.
a lagoon
c.
a spit
d.
a barrier island
Hint
13.
Waves move at __________ velocity in deep water than in shallow water.
a.
the same
b.
a 100-times-faster
c.
a slower
d.
a faster
Hint
14.
What flat erosion surface is formed as a headland is worn away?
a.
wave-cut platform
b.
wave-cut cliff
c.
sea arches
d.
sea caves
Hint
15.
__________ are points of land sticking out into the ocean.
a.
Beaches
b.
Estuaries
c.
Rocky headlands
d.
Barrier islands
Hint
16.
What is a barrier island?
a.
a narrow bank of sand that projects into the ocean
b.
a narrow ridge of sand that connects the mainland and an island
c.
a narrow bank of sand that crosses a bay
d.
a long ridge of sand that is separate from the mainland
Hint
17.
Why is water in an estuary commonly brackish?
a.
It is moved with the longshore current.
b.
It is a nursery for fish.
c.
It's a mixture of freshwater and salt water.
d.
Its chemistry is affected by sea grasses.
Hint
18.
What is causing relative sea level to drop along the West Coast of the United States?
a.
global warming
b.
the melting of polar ice
c.
tectonic forces
d.
regional cooling
Hint
19.
Water movement parallel to shore is called __________.
a.
longshore bar
b.
upwelling
c.
longshore current
d.
rip current
Hint
20.
How much lower was sea level 10,000 years ago?
a.
500 m
b.
130 m
c.
100 m
d.
20 m
Hint
21.
Which is NOT a method of building coastal landforms above sea level?
a.
upwelling of sediments
b.
storms moving sediments above the high-tide mark
c.
wind-shaping dunes from sediments exposed at low tide
d.
longshore transportation of sediments at high tide
Hint
