Question 1

Sea-level rise is increased by expansion of warmed ocean water.

Accepted Answer

A) True 
 B)False

Question 2

Tides are mainly caused by the difference in pull of the moon's gravity on the oceans.

Accepted Answer

A) True 
 B)False

Question 3

Ocean waves breaking on a beach are formed by this

Accepted Answer

A)   Earthquakes.
B)   Wind.
C)   Tides.
D)   Passing ships.

Question 4

During storms,tides are often unusually high; over wash of dunes and rapid shoreline retreat are possible.

Accepted Answer

A) True 
 B)False

Question 5

Littoral drift,which results in gradual sand movement down the beach in the same direction is also referred to as

Accepted Answer

A)   Long shore drift.
B)   Saltation.
C)   Traction.
D)   The Gulf Stream.

Question 6

The amount of property damage and loss of life caused by a hurricane can be estimated directly from the intensity (category)of the storm.

Accepted Answer

A) True 
 B)False

Question 7

Hard/Structural stabilization of a beach

Accepted Answer

A)   Is the best method for controlling beach erosion.
B)   Often results in more, rather than less beach erosion.
C)   Is banned by the Coastal Management and Protection Act.
D)   Is necessary to create littoral drift.

Question 8

When sand replenishment of a beach is undertaken,

Accepted Answer

A)   The effort is considerable, but it need only be done once.
B)   Erosion will be halted when the new sand is firmly in place.
C)   It may be important to duplicate the mineralogy and grain size of the original sand.
D)   All of the choices are correct.

Question 9

The rate of global sea-level rise may be accelerated through greenhouse-effect heating.

Accepted Answer

A) True 
 B)False

Question 10

Where seawalls have been built,the whole beach in front of them has sometimes been eroded away.

Accepted Answer

A) True 
 B)False

Question 11

Along a coast,a body of water receiving input of both fresh and salt water is

Accepted Answer

A)   A breakwater.
B)   A berm.
C)   A long shore current.
D)   An estuary.

Question 12

Along an irregular coastline,areas most intensely under attack by waves are

Accepted Answer

A)   Recessed bays into which breakers come rolling from far at sea.
B)   Headlands projecting out into the sea.
C)   Areas down-current of piers and breakwaters.
D)   None of these; all points along a given coastline are affected equally.

Question 13

Causes of shifts in relative elevation of land and sea along a coast include

Accepted Answer

A)   Tectonic movements.
B)   Glacial loading.
C)   Melting of ice caps.
D)   All of the choices are correct.

Question 14

At present,along the eastern coast of the United States,

Accepted Answer

A)   Sea level is rising.
B)   Sea level is falling.
C)   Sea level is rising, but the continent is rising faster.
D)   Beaches are being extended seaward.

Question 15

Sand may be supplied to a beach by

Accepted Answer

A)   Littoral drift along the coast.
B)   Dunes at the back of the beach.
C)   Streams draining the continent that end at the shore.
D)   All of the choices are correct.

Question 16

Extraction of oil can lead to coastal flooding.

Accepted Answer

A) True 
 B)False

Question 17

Beach replenishment projects that add sand to eroding beaches

Accepted Answer

A)   Are a permanent solution to beach erosion that will never have to be repeated.
B)   Must match the grain size of the sand, because finer sand will be carried away quickly by the ocean currents and coarser sand could result in a steeper beach face.
C)   Are fairly inexpensive.
D)   Are a hard/structural approach to beach stabilization.

Question 18

Beach sand replenishment is initially costly,but at least it is lasting; the average "life span" of a replenished beach is about 25 years.

Accepted Answer

A) True 
 B)False

Question 19

The periodic fall and rise in levels of water as a result of gravitational force of the sun and moon would result in

Accepted Answer

A)   Surges.
B)   Currents.
C)   Waves.
D)   Tides.

Question 20

Where ocean meets a steep rocky cliff,erosion is most rapid far below the water line,where the pressure of deep water is great.

Accepted Answer

A) True 
 B)False

Exam 7: Coastal Zones and Processes

Along an irregular coastline,areas most intensely under attack by waves are

Correct AnswerverifiedShow Answer

The rate of global sea-level rise may be accelerated through greenhouse-effect heating.

Correct AnswerverifiedShow Answer

Sea-level rise is increased by expansion of warmed ocean water.

Correct AnswerverifiedShow Answer

Tides are mainly caused by the difference in pull of the moon's gravity on the oceans.

Correct AnswerverifiedShow Answer

Ocean waves breaking on a beach are formed by this

Correct AnswerverifiedShow Answer

During storms,tides are often unusually high; over wash of dunes and rapid shoreline retreat are possible.

Correct AnswerverifiedShow Answer

Where ocean meets a steep rocky cliff,erosion is most rapid far below the water line,where the pressure of deep water is great.

Correct AnswerverifiedShow Answer

Littoral drift,which results in gradual sand movement down the beach in the same direction is also referred to as

Correct AnswerverifiedShow Answer

Along a coast,a body of water receiving input of both fresh and salt water is

Correct AnswerverifiedShow Answer

When sand replenishment of a beach is undertaken,

Correct AnswerverifiedShow Answer

Beach sand replenishment is initially costly,but at least it is lasting; the average "life span" of a replenished beach is about 25 years.

Correct AnswerverifiedShow Answer

The periodic fall and rise in levels of water as a result of gravitational force of the sun and moon would result in

Correct AnswerverifiedShow Answer

At present,along the eastern coast of the United States,

Correct AnswerverifiedShow Answer

Extraction of oil can lead to coastal flooding.

Correct AnswerverifiedShow Answer

The amount of property damage and loss of life caused by a hurricane can be estimated directly from the intensity (category)of the storm.

Correct AnswerverifiedShow Answer

Causes of shifts in relative elevation of land and sea along a coast include

Correct AnswerverifiedShow Answer

Where seawalls have been built,the whole beach in front of them has sometimes been eroded away.

Correct AnswerverifiedShow Answer

Hard/Structural stabilization of a beach

Correct AnswerverifiedShow Answer

Beach replenishment projects that add sand to eroding beaches

Correct AnswerverifiedShow Answer

Sand may be supplied to a beach by

Correct AnswerverifiedShow Answer

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