Question 1

The variation in sea level that can be measured over the world ocean is called .

Accepted Answer

A)  erosional change 
B)  tectonic change 
C)  dynamic change 
D)  eustatic change 
A)  erosional change 
B)  tectonic change 
C)  dynamic change 
D)  eustatic change

Question 2

Deltas form at the mouths of sediment-laden rivers and where continental shelves are broad.

Accepted Answer

A) True 
 B)False

Question 3

The origin of sea cliffs, sea stacks, sea caves, blowholes, and arches is related to .

Accepted Answer

A)  longshore currents 
B)  high tides 
C)  human activities 
D)  erosion by waves 
A)  longshore currents 
B)  high tides 
C)  human activities 
D)  erosion by waves

Question 4

Which of the following is true for depositional coasts?

Accepted Answer

A)  They have never been changed by wave action since sea level stabilized. 
B)  They never support beaches. 
C)  Exposed bedrock is more common than loose sediment on depositional coasts. 
D)  Beaches are a common feature on depositional coasts. 
A)  They have never been changed by wave action since sea level stabilized. 
B)  They never support beaches. 
C)  Exposed bedrock is more common than loose sediment on depositional coasts. 
D)  Beaches are a common feature on depositional coasts.

Question 5

Subsidence in the Gulf coast is mainly due to .

Accepted Answer

A)  tectonic activity 
B)  emptying of a volcanic chamber 
C)  coastal erosion 
D)  sediment compaction 
A)  tectonic activity 
B)  emptying of a volcanic chamber 
C)  coastal erosion 
D)  sediment compaction

Question 6

Human activities that can significantly contribute to shoreline erosion include .

Accepted Answer

A)  building sand dunes near the backshore to protect property 
B)  importing sand to beaches from offshore 
C)  placement of seawalls along the shoreline 
D)  excess fishing and boating activities 
A)  building sand dunes near the backshore to protect property 
B)  importing sand to beaches from offshore 
C)  placement of seawalls along the shoreline 
D)  excess fishing and boating activities

Question 7

Which statement is true with regard to breakwaters?

Accepted Answer

A)  Beach sand is eroded on the downstream side of the breakwater. 
B)  Breakwaters interrupt the progress of waves to the beach. 
C)  Breakwaters strengthen longshore currents. 
D)  Breakwaters are often built to provide nesting habitat for shore birds. 
A)  Beach sand is eroded on the downstream side of the breakwater. 
B)  Breakwaters interrupt the progress of waves to the beach. 
C)  Breakwaters strengthen longshore currents. 
D)  Breakwaters are often built to provide nesting habitat for shore birds.

Question 8

A long-term effect of wave refraction is .

Accepted Answer

A)  to smooth and straighten a shoreline 
B)  to add sediment to headlands that extend outward from the shore 
C)  to erode and deepen bays 
D)  to remove sand from the beach 
A)  to smooth and straighten a shoreline 
B)  to add sediment to headlands that extend outward from the shore 
C)  to erode and deepen bays 
D)  to remove sand from the beach

Question 9

The Pacific coast is commonly called a(n) .

Accepted Answer

A)  active margin 
B)  passive margin 
C)  margin that gradually transitions from a passive to an active margin 
D)  margin that continually changes from being a passive margin to an active margin and then back to passive margin 
A)  active margin 
B)  passive margin 
C)  margin that gradually transitions from a passive to an active margin 
D)  margin that continually changes from being a passive margin to an active margin and then back to passive margin

Question 10

The greatest of all reefs is the .

Accepted Answer

A)  Florida Keys 
B)  Red Sea Coral Reef 
C)  Australian Great Barrier Reef 
D)  Belize Barrier Reef 
A)  Florida Keys 
B)  Red Sea Coral Reef 
C)  Australian Great Barrier Reef 
D)  Belize Barrier Reef

Question 11

Short extensions of rock or other material that are placed at right angles to longshore drift to stop the longshore transport of sediments are called .

Accepted Answer

A)  berms 
B)  seawalls 
C)  groins 
D)  dolos 
A)  berms 
B)  seawalls 
C)  groins 
D)  dolos

Question 12

Most often, sediments found on the beaches of depositional coasts are supplied by .

Accepted Answer

A)  erosion of local coastal cliffs 
B)  erosion of basement rock along the shoreline 
C)  glacial processes 
D)  rivers or ocean currents 
A)  erosion of local coastal cliffs 
B)  erosion of basement rock along the shoreline 
C)  glacial processes 
D)  rivers or ocean currents

Question 13

The energy that drives the longshore currents is derived from .

Accepted Answer

A)  hurricanes and cyclones 
B)  major surface currents, such as the Gulf Stream 
C)  monthly high tides 
D)  wind waves approaching the beach front at an angle 
A)  hurricanes and cyclones 
B)  major surface currents, such as the Gulf Stream 
C)  monthly high tides 
D)  wind waves approaching the beach front at an angle

Question 14

Deep, narrow bays that are often formed by tectonic forces and later modified by glaciers are called .

Accepted Answer

A)  lagoons 
B)  drowned river mouths 
C)  fjords 
D)  bay mouth bars 
A)  lagoons 
B)  drowned river mouths 
C)  fjords 
D)  bay mouth bars

Question 15

What type of delta forms when freshwater discharge delivers sediments into long islands parallel to the river flow and perpendicular to the trend of the coast?

Accepted Answer

A)  river-dominated delta 
B)  wave-dominated delta 
C)  mixed delta 
D)  tide-dominated delta 
A)  river-dominated delta 
B)  wave-dominated delta 
C)  mixed delta 
D)  tide-dominated delta

Question 16

The place where the ocean meets land is usually called the .

Accepted Answer

A)  beach 
B)  shore 
C)  bay 
D)  coast 
A)  beach 
B)  shore 
C)  bay 
D)  coast

Question 17

The steep cliffs and rugged headlands common along much of the Pacific Coast of the United States are primarily the result of .

Accepted Answer

A)  recent tectonic activity 
B)  marine deposition 
C)  river deposition 
D)  glacial erosion 
A)  recent tectonic activity 
B)  marine deposition 
C)  river deposition 
D)  glacial erosion

Question 18

Which of the following factors would cause sea level to fall?

Accepted Answer

A)  Periods of global glaciation trap water in land-based glaciers. 
B)  Global warming causes seawater to expand and occupy more volume. 
C)  Expansion of oceanic ridges displaces seawater 
D)  Sediment shed by the continents during periods of rapid erosion displaces seawater. 
A)  Periods of global glaciation trap water in land-based glaciers. 
B)  Global warming causes seawater to expand and occupy more volume. 
C)  Expansion of oceanic ridges displaces seawater 
D)  Sediment shed by the continents during periods of rapid erosion displaces seawater.

Question 19

The rate of subsidence of the Gulf coast is less than that of nearly all of the Atlantic or Pacific coasts.

Accepted Answer

A) True 
 B)False

Question 20

How have human activities influenced coastal processes? Provide a specific example.

Accepted Answer

Human construction of structures such as

The variation in sea level that can be measured over the world ocean is called .

Deltas form at the mouths of sediment-laden rivers and where continental shelves are broad.

The origin of sea cliffs, sea stacks, sea caves, blowholes, and arches is related to .

Which of the following is true for depositional coasts?

Subsidence in the Gulf coast is mainly due to .

Human activities that can significantly contribute to shoreline erosion include .

Which statement is true with regard to breakwaters?

A long-term effect of wave refraction is .

The Pacific coast is commonly called a(n) .

The greatest of all reefs is the .

Short extensions of rock or other material that are placed at right angles to longshore drift to stop the longshore transport of sediments are called .

Most often, sediments found on the beaches of depositional coasts are supplied by .

The energy that drives the longshore currents is derived from .

Deep, narrow bays that are often formed by tectonic forces and later modified by glaciers are called .

What type of delta forms when freshwater discharge delivers sediments into long islands parallel to the river flow and perpendicular to the trend of the coast?

The place where the ocean meets land is usually called the .

The steep cliffs and rugged headlands common along much of the Pacific Coast of the United States are primarily the result of .

Which of the following factors would cause sea level to fall?

The rate of subsidence of the Gulf coast is less than that of nearly all of the Atlantic or Pacific coasts.

How have human activities influenced coastal processes? Provide a specific example.

An Ocean World

Plate Tectonics

The Ocean Floor

Water and Ocean Structure

Atmospheric Circulation

Ocean Circulation

Waves and Tides

Life in the Ocean

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Exam 8: Coasts

The variation in sea level that can be measured over the world ocean is called .

Deltas form at the mouths of sediment-laden rivers and where continental shelves are broad.

The origin of sea cliffs, sea stacks, sea caves, blowholes, and arches is related to .

Which of the following is true for depositional coasts?

Subsidence in the Gulf coast is mainly due to .

Human activities that can significantly contribute to shoreline erosion include .

Which statement is true with regard to breakwaters?

A long-term effect of wave refraction is .

The Pacific coast is commonly called a(n) .

The greatest of all reefs is the .

Short extensions of rock or other material that are placed at right angles to longshore drift to stop the longshore transport of sediments are called .

Most often, sediments found on the beaches of depositional coasts are supplied by .

The energy that drives the longshore currents is derived from .

Deep, narrow bays that are often formed by tectonic forces and later modified by glaciers are called .

What type of delta forms when freshwater discharge delivers sediments into long islands parallel to the river flow and perpendicular to the trend of the coast?

The place where the ocean meets land is usually called the .

The steep cliffs and rugged headlands common along much of the Pacific Coast of the United States are primarily the result of .

Which of the following factors would cause sea level to fall?

The rate of subsidence of the Gulf coast is less than that of nearly all of the Atlantic or Pacific coasts.

How have human activities influenced coastal processes? Provide a specific example.

An Ocean World

Plate Tectonics

The Ocean Floor

Water and Ocean Structure

Atmospheric Circulation

Ocean Circulation

Waves and Tides

Life in the Ocean

Marine Communities

Uses and Abuses of the Ocean

Filters