Question 1

What happens to the land surface when large ice sheets melt away?

Accepted Answer

A)  It subsides because there is less ice on top.
B)  The land surface remains unchanged but seems lower because of the loss of ice.
C)  The land flexes upward due to isostatic rebound.
D)  The land rises because the rocks are warmer without the ice. C

Question 2

What was a key point demonstrated by photographs in the textbook from before and after hurricanes?

Accepted Answer

A)  Neighborhoods were flooded, but the houses and shorelines were unchanged.
B)  Most houses were buried beneath sand brought in by strong waves.
C)  Waves and storm surge caused erosion of beaches and destruction of houses.
D)  Most houses were protected by the beach sediment. C

Question 3

The diagram below represents a model that the U.S.Geological Survey (USGS) uses to categorize the extent of storm surge in the coastal zone.In this diagram the Rhigh represents

Accepted Answer

A)  the maximum height of the swash zone.
B)  the highest rate of discharge from the nearest stream.
C)  the radius of motion of water molecules that are part of the waves of oscillation.
D)  the height of high tide.

Question 4

The typical setting of a sea cave or sea stack is

Accepted Answer

A)  within a protected bay.
B)  on a barrier island.
C)  on a sandbar.
D)  on a baymouth bar.
E)  on a promontory.

Question 5

Which of the following is NOT a possible source of large stones along a shoreline?

Accepted Answer

A)  waves swirl away loose pieces of bedrock
B)  undercutting by waves causes steep rock faces to collapse into the sea
C)  rivers depositing large cobbles near the coastline
D)  large storms erode the deep seafloor and transport the rocks toward the beach

Question 6

With the Moon in this position, which area will experience high tide?

Accepted Answer

A)  1
B)  2
C)  3
D)  1 and 3
E)  2 and 4

Question 7

How do waves propagate across the water?

Accepted Answer

A)  The wave moves forward but water moves in a circular motion.
B)  Water near the surface moves less than water at depth.
C)  Water within the wave travels as far as the wave does.
D)  All of these.

Question 8

The feature pictured below formed as

Accepted Answer

A)  an island flanked by coral sank.
B)  mass wasting caused the highest parts of a hill to move downslope until nothing was left in the middle.
C)  oceanic sea-floor spreading occurred in a circular pattern.
D)  a recent explosive volcanic eruption left only the sides of the volcano remaining.

Question 9

If multiple waves on the ocean are approaching the same point, but arriving from different directions, the result is most likely to be

Accepted Answer

A)  a tsunami.
B)  choppy seas.
C)  smaller waves than would have occurred if the waves were coming from only one direction.
D)  a shallower wave base.

Question 10

Which of the following is NOT an approach communities have tried to address shoreline problems?

Accepted Answer

A)  construction of a seawall
B)  construction of a jetty
C)  lowering the local sea level
D)  building a breakwater
E)  replenishing sand

Question 11

What features are shown in this photograph?

Accepted Answer

A)  coral reefs
B)  karst topography
C)  pinnacles and sea stacks
D)  sea caves
E)  None of these.

Question 12

Over time, a spit will grow

Accepted Answer

A)  toward a promontory.
B)  in the same direction as a longshore current.
C)  in the direction from which waves are approaching the coast.
D)  toward a wave-cut platform.
E)  None of these. B

Question 13

With the Sun and Moon in this position, the side of the Earth facing the Moon experiences

Accepted Answer

A)  a normal high tide.
B)  a normal low tide.
C)  a spring tide.
D)  a neap tide.

Question 14

Which of the following can influence whether a coast gains or loses sand with time?

Accepted Answer

A)  the amount of precipitation on land
B)  the amount of sediment in rivers
C)  a longshore current
D)  prevailing wind direction
E)  All of these.

Question 15

Which of the following would cause sea level to fall?

Accepted Answer

A)  a decrease in the amount of glaciers on land
B)  a slowing in the rate of seafloor spreading
C)  a rise in the temperature of the oceans
D)  All of these.

Question 16

The diagram below represents which stage of the U.S.Geological Survey's model of beach erosion?

Accepted Answer

A)  Swash regime
B)  Collision regime
C)  Overwash regime
D)  Inundation regime

Question 17

The sea cave in this photograph formed by

Accepted Answer

A)  erosion of a promontory by waves.
B)  erosion by blowing beach sand.
C)  removal of rocks by giant lobsters.
D)  a rapid drop in sea level.

Question 18

Rip currents form because

Accepted Answer

A)  the longshore current gets intensified.
B)  there is more coastal upwelling than usual.
C)  neap tides bring extra energy.
D)  backwash occurs in a narrow zone.

Question 19

Factors that affect the appearance of a shoreline include

Accepted Answer

A)  the hardness of bedrock along the coast.
B)  climate and vegetation.
C)  whether sea level has risen or fallen relative to the coast.
D)  All of these.

Question 20

The depth of wave base is the same as

Accepted Answer

A)  the depth to which wave action extends.
B)  a depth equal to three times the wavelength of waves.
C)  the process by which waves move material along the bottom in very deep water.
D)  the inside of a tubular breaking wave that is perfect for surfing.

Exam 15: Coasts and Changing Sea Levels

What happens to the land surface when large ice sheets melt away?

Correct AnswerverifiedC

What was a key point demonstrated by photographs in the textbook from before and after hurricanes?

Correct AnswerverifiedC

The diagram below represents a model that the U.S.Geological Survey (USGS) uses to categorize the extent of storm surge in the coastal zone.In this diagram the Rhigh represents

Correct AnswerverifiedShow Answer

The typical setting of a sea cave or sea stack is

Correct AnswerverifiedShow Answer

Which of the following is NOT a possible source of large stones along a shoreline?

Correct AnswerverifiedShow Answer

With the Moon in this position, which area will experience high tide?

Correct AnswerverifiedShow Answer

How do waves propagate across the water?

Correct AnswerverifiedShow Answer

The feature pictured below formed as

Correct AnswerverifiedShow Answer

If multiple waves on the ocean are approaching the same point, but arriving from different directions, the result is most likely to be

Correct AnswerverifiedShow Answer

Which of the following is NOT an approach communities have tried to address shoreline problems?

Correct AnswerverifiedShow Answer

What features are shown in this photograph?

Correct AnswerverifiedShow Answer

Over time, a spit will grow

Correct AnswerverifiedB

With the Sun and Moon in this position, the side of the Earth facing the Moon experiences

Correct AnswerverifiedShow Answer

Which of the following can influence whether a coast gains or loses sand with time?

Correct AnswerverifiedShow Answer

Which of the following would cause sea level to fall?

Correct AnswerverifiedShow Answer

The diagram below represents which stage of the U.S.Geological Survey's model of beach erosion?

Correct AnswerverifiedShow Answer

The sea cave in this photograph formed by

Correct AnswerverifiedShow Answer

Rip currents form because

Correct AnswerverifiedShow Answer

Factors that affect the appearance of a shoreline include

Correct AnswerverifiedShow Answer

The depth of wave base is the same as

Correct AnswerverifiedShow Answer

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C

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C

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B

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