Question 1

Describe what is meant by the Managed Retreat Solution and describe how it might be used on a beach or shoreline of your choice.

Accepted Answer

The Managed Retreat Solution involves la

Question 2

What is the "Managed Retreat Solution"?

Accepted Answer

A)  Adding sand to locations that need sand 
B)  Adding more jetties and breakwaters 
C)  Rethinking land uses and developing less of the coastal zone 
D)  Adding more hard stabilizations to the beach 
E)  Using a variety of soft stabilizations to save beach 
A)  Adding sand to locations that need sand 
B)  Adding more jetties and breakwaters 
C)  Rethinking land uses and developing less of the coastal zone 
D)  Adding more hard stabilizations to the beach 
E)  Using a variety of soft stabilizations to save beach

Question 3

If you see a wave get taller, the wavelength is what is increasing.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is a form of soft stabilization?

Accepted Answer

A)  Jetties 
B)  Breakwaters 
C)  Seawalls 
D)  Beach nourishment 
E)  Groins 
A)  Jetties 
B)  Breakwaters 
C)  Seawalls 
D)  Beach nourishment 
E)  Groins

Question 5

Waves break when they reach shallow water because their amplitude grows too large.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following statements is TRUE about coastlines?

Accepted Answer

A)  Coastlines are the place where the continental crust meets the ocean crust. 
B)  Coastlines are constantly changing in shape and length. 
C)  Coastlines are at the boundaries of different tectonic plates. 
D)  Coastlines are always wide and sandy. 
A)  Coastlines are the place where the continental crust meets the ocean crust. 
B)  Coastlines are constantly changing in shape and length. 
C)  Coastlines are at the boundaries of different tectonic plates. 
D)  Coastlines are always wide and sandy.

Question 7

Breakwaters are often built parallel to the shoreline to protect harbor boats.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is the best way to measure the wave height of a set of waves at the beach?

Accepted Answer

A)  Hold a meterstick in the water and measure how high the wave goes on the stick 
B)  Count the number of waves that pass by in a minute 
C)  Using a stopwatch, time the waves as the crests move by 
D)  Take a picture of the waves with a camera and measure the distance between the crests with a ruler 
E)  Using a scale, measure the pressure of the largest wave 
A)  Hold a meterstick in the water and measure how high the wave goes on the stick 
B)  Count the number of waves that pass by in a minute 
C)  Using a stopwatch, time the waves as the crests move by 
D)  Take a picture of the waves with a camera and measure the distance between the crests with a ruler 
E)  Using a scale, measure the pressure of the largest wave

Question 9

Most of the sand moves perpendicular to shoreline, pushing sand up on the land.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following does NOT happen to waves as they reach the headlands of an irregular coastline?

Accepted Answer

A)  They diverge and spread over a larger area. 
B)  They release their energy when the waves break. 
C)  Their wave heights increase. 
D)  They erode the headlands. 
E)  They slow down. 
A)  They diverge and spread over a larger area. 
B)  They release their energy when the waves break. 
C)  Their wave heights increase. 
D)  They erode the headlands. 
E)  They slow down.

Question 11

In one particular coastline, one of the beaches in the northern end is shrinking, whereas a beach further south is growing. Explain why the beaches are growing and shrinking.

Accepted Answer

If input of sand to a beach exceeds outp

Question 12

Which of the following is NOT a drawback to using beach nourishment?

Accepted Answer

A)  It can be difficult to transport the large amounts of sand necessary. 
B)  It can be expensive to transport the large amounts of sand necessary. 
C)  The sand used for beach nourishment must be chosen carefully to determine if it will fit the ecology of the beach. 
D)  The replenished sand likely will eventually erode again. 
E)  It is less aesthetically pleasing than other solutions. 
A)  It can be difficult to transport the large amounts of sand necessary. 
B)  It can be expensive to transport the large amounts of sand necessary. 
C)  The sand used for beach nourishment must be chosen carefully to determine if it will fit the ecology of the beach. 
D)  The replenished sand likely will eventually erode again. 
E)  It is less aesthetically pleasing than other solutions.

Question 13

Beach nourishment is usually the best solution to an erosion problem because it is usually a permanent fix.

Accepted Answer

A) True 
 B)False

Question 14

The Louisiana coastline on the Gulf of Mexico is probably more vulnerable to coastal hazards than a coastline in northern California. Which statement best explains why this is?

Accepted Answer

A)  The Louisiana coastline is subsiding. 
B)  The water in the Gulf is warmer. 
C)  The currents in the Gulf are stronger. 
D)  The recent oil spill made Louisiana more vulnerable to waves. 
E)  The beach sand is finer grained and more easily removed by currents in Louisiana. 
A)  The Louisiana coastline is subsiding. 
B)  The water in the Gulf is warmer. 
C)  The currents in the Gulf are stronger. 
D)  The recent oil spill made Louisiana more vulnerable to waves. 
E)  The beach sand is finer grained and more easily removed by currents in Louisiana.

Question 15

Which of the following hard stabilizations is built in an effort to protect boats in the harbor?

Accepted Answer

A)  Breakwaters 
B)  Seawalls 
C)  Beach nourishment 
D)  Groins 
A)  Breakwaters 
B)  Seawalls 
C)  Beach nourishment 
D)  Groins

Question 16

What is the swash zone?

Accepted Answer

A)  Where waves break 
B)  Between the surf zone and the breaker zone 
C)  Where the longshore bar forms 
D)  Where the waves surge up the beach and then flow back towards the ocean 
E)  Where the highest tides reach 
A)  Where waves break 
B)  Between the surf zone and the breaker zone 
C)  Where the longshore bar forms 
D)  Where the waves surge up the beach and then flow back towards the ocean 
E)  Where the highest tides reach

Question 17

What could cause a large change in eustatic sea level?

Accepted Answer

A)  Tides 
B)  Heavy storms 
C)  Drought on land 
D)  Global warming 
E)  Earthquakes 
A)  Tides 
B)  Heavy storms 
C)  Drought on land 
D)  Global warming 
E)  Earthquakes

Question 18

Which of the following statements is TRUE about waves?

Accepted Answer

A)  Waves break because they rise too high in shallow water. 
B)  Waves diminish greatly in size as they move across the ocean. 
C)  Waves are mostly random and cannot be predicted. 
D)  Wavelength increases when the wave approaches the shoreline. 
E)  Waves speed up when they approach the coastline. 
A)  Waves break because they rise too high in shallow water. 
B)  Waves diminish greatly in size as they move across the ocean. 
C)  Waves are mostly random and cannot be predicted. 
D)  Wavelength increases when the wave approaches the shoreline. 
E)  Waves speed up when they approach the coastline.

Question 19

What is the difference between eustatic and relative sea level?

Accepted Answer

A)  Eustatic refers to the global sea level; relative refers to local sea level near land. 
B)  Eustatic refers to global sea level; relative refers to sea levels with respect to mid-ocean ridges. 
C)  Eustatic refers to sea levels that don't change; relative refers to local sea level. 
D)  Eustatic refers to sea levels that are advantageous for shipping; relative sea level refers to high and low tides. 
E)  There is no difference between them. 
A)  Eustatic refers to the global sea level; relative refers to local sea level near land. 
B)  Eustatic refers to global sea level; relative refers to sea levels with respect to mid-ocean ridges. 
C)  Eustatic refers to sea levels that don't change; relative refers to local sea level. 
D)  Eustatic refers to sea levels that are advantageous for shipping; relative sea level refers to high and low tides. 
E)  There is no difference between them.

Question 20

Beach sand everywhere is the same color because it all comes from eroded oceanic tectonic plates.

Accepted Answer

A) True 
 B)False

Describe what is meant by the Managed Retreat Solution and describe how it might be used on a beach or shoreline of your choice.

What is the "Managed Retreat Solution"?

If you see a wave get taller, the wavelength is what is increasing.

Which of the following is a form of soft stabilization?

Waves break when they reach shallow water because their amplitude grows too large.

Which of the following statements is TRUE about coastlines?

Breakwaters are often built parallel to the shoreline to protect harbor boats.

Which of the following is the best way to measure the wave height of a set of waves at the beach?

Most of the sand moves perpendicular to shoreline, pushing sand up on the land.

Which of the following does NOT happen to waves as they reach the headlands of an irregular coastline?

In one particular coastline, one of the beaches in the northern end is shrinking, whereas a beach further south is growing. Explain why the beaches are growing and shrinking.

Which of the following is NOT a drawback to using beach nourishment?

Beach nourishment is usually the best solution to an erosion problem because it is usually a permanent fix.

The Louisiana coastline on the Gulf of Mexico is probably more vulnerable to coastal hazards than a coastline in northern California. Which statement best explains why this is?

Which of the following hard stabilizations is built in an effort to protect boats in the harbor?

What is the swash zone?

What could cause a large change in eustatic sea level?

Which of the following statements is TRUE about waves?

What is the difference between eustatic and relative sea level?

Beach sand everywhere is the same color because it all comes from eroded oceanic tectonic plates.

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Flooding

Mass Wasting

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Climate and Climate Change

Wildfires

Impacts and Extinctions

Filters

Exam 11: Coastal Hazards

Describe what is meant by the Managed Retreat Solution and describe how it might be used on a beach or shoreline of your choice.

What is the "Managed Retreat Solution"?

If you see a wave get taller, the wavelength is what is increasing.

Which of the following is a form of soft stabilization?

Waves break when they reach shallow water because their amplitude grows too large.

Which of the following statements is TRUE about coastlines?

Breakwaters are often built parallel to the shoreline to protect harbor boats.

Which of the following is the best way to measure the wave height of a set of waves at the beach?

Most of the sand moves perpendicular to shoreline, pushing sand up on the land.

Which of the following does NOT happen to waves as they reach the headlands of an irregular coastline?

In one particular coastline, one of the beaches in the northern end is shrinking, whereas a beach further south is growing. Explain why the beaches are growing and shrinking.

Which of the following is NOT a drawback to using beach nourishment?

Beach nourishment is usually the best solution to an erosion problem because it is usually a permanent fix.

The Louisiana coastline on the Gulf of Mexico is probably more vulnerable to coastal hazards than a coastline in northern California. Which statement best explains why this is?

Which of the following hard stabilizations is built in an effort to protect boats in the harbor?

What is the swash zone?

What could cause a large change in eustatic sea level?

Which of the following statements is TRUE about waves?

What is the difference between eustatic and relative sea level?

Beach sand everywhere is the same color because it all comes from eroded oceanic tectonic plates.

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Flooding

Mass Wasting

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Climate and Climate Change

Wildfires

Impacts and Extinctions

Filters