Question 1

What is responsible for increasing a beach's slope?

Accepted Answer

A)  The swash 
B)  The backwash 
C)  The biological activity 
D)  The berm crest 
A)  The swash 
B)  The backwash 
C)  The biological activity 
D)  The berm crest A

Question 2

What is the global, long term-change to sea level?

Accepted Answer

A)  Active change 
B)  Temporal change 
C)  Eustatic change 
D)  Passive change 
A)  Active change 
B)  Temporal change 
C)  Eustatic change 
D)  Passive change C

Question 3

What are some of the causes of eustatic change to sea level? Include local possibilities of sea level change as well.

Accepted Answer

Answer should include: 
·Global glaciation can make sea level lower. There is less water in the ocean because it freezes into the glaciers. 
·Warm periods can cause glaciers and ice caps to melt. This raises the level of the ocean. Outgassing can also contribute to the heighten sea level. 
·High rates of seafloor spreading can create large oceanic ridges. The expansion displaces the water so the sea level gets higher. This also decreases the potential volume of the ocean. 
·Temperature can vary the amount of volume the water occupies. 
·Uplift and atmospheric events that send water in motion can create local changes in sea level. This includes wind and currents, seiches, storm surges and even El Niño and La Niña events. 
 Information can be found in the section Coasts Are Shaped by Marine and Terrestrial Processes .

Question 4

The beach scarp is at the low tide mark and signifies the beginning of the offshore zone.

Accepted Answer

A) True 
 B)False

Question 5

How have parts of Florida's coast been extended?

Accepted Answer

A)  Fringing reefs 
B)  Mangroves 
C)  Barrier reefs 
D)  Atolls 
A)  Fringing reefs 
B)  Mangroves 
C)  Barrier reefs 
D)  Atolls

Question 6

Where are deltas common?

Accepted Answer

A)  Low energy shores 
B)  High energy shores 
C)  Leading edges of continents 
D)  At the base of mountains 
A)  Low energy shores 
B)  High energy shores 
C)  Leading edges of continents 
D)  At the base of mountains

Question 7

Where does most of the sediment on the Pacific coast originate from?

Accepted Answer

A)  Granite rock 
B)  Biological productivity 
C)  Basalt Rock 
D)  Lava 
A)  Granite rock 
B)  Biological productivity 
C)  Basalt Rock 
D)  Lava

Question 8

What is the rate of shore erosion dependent upon?

Accepted Answer

A)  The amount of biological activity 
B)  The amount of global tectonic activity 
C)  Exposure to wave activity 
D)  The amount of sediment accumulation 
A)  The amount of biological activity 
B)  The amount of global tectonic activity 
C)  Exposure to wave activity 
D)  The amount of sediment accumulation

Question 9

What is the eventual fate of erosional beaches?

Accepted Answer

A)  The sea cliffs and sea caves overrun the coastline. 
B)  Marine erosion becomes less of a factor with the age of the beach. 
C)  They become a depositional beach. 
D)  sand dune formation 
A)  The sea cliffs and sea caves overrun the coastline. 
B)  Marine erosion becomes less of a factor with the age of the beach. 
C)  They become a depositional beach. 
D)  sand dune formation

Question 10

What marks the limit of rapid marine erosion?

Accepted Answer

A)  Sea cliffs 
B)  Wave-cut platforms 
C)  Sea caves 
D)  Blowholes 
A)  Sea cliffs 
B)  Wave-cut platforms 
C)  Sea caves 
D)  Blowholes

Question 11

Why do large, broad beaches have gradual slopes?

Accepted Answer

A)  They have coarse particles. 
B)  There is a minimal transport of sediments back to the ocean. 
C)  They are not in equilibrium. 
D)  They have a large area for wave energy to dissipate. 
A)  They have coarse particles. 
B)  There is a minimal transport of sediments back to the ocean. 
C)  They are not in equilibrium. 
D)  They have a large area for wave energy to dissipate.

Question 12

What is a tombolo?

Accepted Answer

A)  An embayment parallel to the shore 
B)  Interconnected marshlands in a river 
C)  A passage to the ocean within a bar 
D)  A bridge of sediment that connects a sea island to the mainland 
A)  An embayment parallel to the shore 
B)  Interconnected marshlands in a river 
C)  A passage to the ocean within a bar 
D)  A bridge of sediment that connects a sea island to the mainland

Question 13

What function does a bay mouth bar provide?

Accepted Answer

A)  It protects the area from waves. 
B)  It protects the area from turbulence. 
C)  It encourages the accumulation of sediments. 
D)  All of these choices 
A)  It protects the area from waves. 
B)  It protects the area from turbulence. 
C)  It encourages the accumulation of sediments. 
D)  All of these choices

Question 14

Which is a factor that determines the location of a coast?

Accepted Answer

A)  The distribution of sediments 
B)  The Erosion of land 
C)  The volume of water in the ocean 
D)  The impact of wave energy 
A)  The distribution of sediments 
B)  The Erosion of land 
C)  The volume of water in the ocean 
D)  The impact of wave energy

Question 15

What are some of the characteristics of an erosional coast? What are some key factors in the shaping of an erosional coast?

Accepted Answer

The answer of What are some of the characteristics of...

Question 16

The accumulation and distribution of a layer of sediment protects depositional beaches from rapid erosion.

Accepted Answer

A) True 
 B)False

Question 17

What is the name for a relatively new coast that has processes removing materials?

Accepted Answer

A)  Passive coasts 
B)  Depositional coasts 
C)  Active coasts 
D)  Erosional coasts 
A)  Passive coasts 
B)  Depositional coasts 
C)  Active coasts 
D)  Erosional coasts

Question 18

Global glaciation events can create variations in local sea level changes.

Accepted Answer

A) True 
 B)False

Question 19

What are the most common, large-scale features on a depositional coast?

Accepted Answer

A)  Barrier islands 
B)  Moraines 
C)  Sand spits 
D)  Deltas 
A)  Barrier islands 
B)  Moraines 
C)  Sand spits 
D)  Deltas

Question 20

What type of reef is a ring-shaped island of coral?

Accepted Answer

A)  Fringing 
B)  Barrier 
C)  Atoll 
D)  Mangrove 
A)  Fringing 
B)  Barrier 
C)  Atoll 
D)  Mangrove

What is responsible for increasing a beach's slope?

What is the global, long term-change to sea level?

What are some of the causes of eustatic change to sea level? Include local possibilities of sea level change as well.

The beach scarp is at the low tide mark and signifies the beginning of the offshore zone.

How have parts of Florida's coast been extended?

Where are deltas common?

Where does most of the sediment on the Pacific coast originate from?

What is the rate of shore erosion dependent upon?

What is the eventual fate of erosional beaches?

What marks the limit of rapid marine erosion?

Why do large, broad beaches have gradual slopes?

What is a tombolo?

What function does a bay mouth bar provide?

Which is a factor that determines the location of a coast?

What are some of the characteristics of an erosional coast? What are some key factors in the shaping of an erosional coast?

The accumulation and distribution of a layer of sediment protects depositional beaches from rapid erosion.

What is the name for a relatively new coast that has processes removing materials?

Global glaciation events can create variations in local sea level changes.

What are the most common, large-scale features on a depositional coast?

What type of reef is a ring-shaped island of coral?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and the Environment

Filters

Exam 12: Coasts

What is responsible for increasing a beach's slope?

What is the global, long term-change to sea level?

What are some of the causes of eustatic change to sea level? Include local possibilities of sea level change as well.

The beach scarp is at the low tide mark and signifies the beginning of the offshore zone.

How have parts of Florida's coast been extended?

Where are deltas common?

Where does most of the sediment on the Pacific coast originate from?

What is the rate of shore erosion dependent upon?

What is the eventual fate of erosional beaches?

What marks the limit of rapid marine erosion?

Why do large, broad beaches have gradual slopes?

What is a tombolo?

What function does a bay mouth bar provide?

Which is a factor that determines the location of a coast?

What are some of the characteristics of an erosional coast? What are some key factors in the shaping of an erosional coast?

The accumulation and distribution of a layer of sediment protects depositional beaches from rapid erosion.

What is the name for a relatively new coast that has processes removing materials?

Global glaciation events can create variations in local sea level changes.

What are the most common, large-scale features on a depositional coast?

What type of reef is a ring-shaped island of coral?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and the Environment

Filters