Question 1

The low-tide terrace ________.

Accepted Answer

A)  is the same as the backshore 
B)  lies above the surf zone 
C)  is found between high- and low-tide levels 
D)  is part of the foreshore 
E)  is the high and dry part of the beach 
A)  is the same as the backshore 
B)  lies above the surf zone 
C)  is found between high- and low-tide levels 
D)  is part of the foreshore 
E)  is the high and dry part of the beach

Question 2

At present, sea level is decreasing around the world's coasts.

Accepted Answer

A) True 
 B)False

Question 3

The net seaward flow of water in a partially mixed estuary is nearly uniform over depth.

Accepted Answer

A) True 
 B)False

Question 4

Accumulated lag deposits protect a beach from continuing erosion.

Accepted Answer

A) True 
 B)False

Question 5

In an estuary, To is always larger than Ti.

Accepted Answer

A) True 
 B)False

Question 6

Primary coasts are coasts that have features created by marine processes.

Accepted Answer

A) True 
 B)False

Question 7

If the seawater available to an estuary has a salinity of 30 percent and the seaward-flowing mixed water has a salinity of 20 percent at the estuary entrance, the net volume transport seaward is ________ units per day if the river input is 10 units per day.

Accepted Answer

A)  5 
B)  10 
C)  20 
D)  30 
E)  50 
A)  5 
B)  10 
C)  20 
D)  30 
E)  50

Question 8

Which type of estuary is characterized by the least variation in salinity with depth at any given point along its axis?

Accepted Answer

A)  a partially mixed estuary 
B)  a salt wedge estuary 
C)  a fjord 
D)  a well-mixed estuary 
E)  None of these is correct; it is impossible to tell from the information given. 
A)  a partially mixed estuary 
B)  a salt wedge estuary 
C)  a fjord 
D)  a well-mixed estuary 
E)  None of these is correct; it is impossible to tell from the information given.

Question 9

A coast made regular and linear by wave erosion is a secondary coast.

Accepted Answer

A) True 
 B)False

Question 10

Calculations of flushing times assume that none of the outflowing water is recycled into the estuary. If this assumption is not correct, the actual flushing time is ________ the calculated flushing time.

Accepted Answer

A)  less than 
B)  greater than 
C)  the same as 
D)  not related to 
E)  None of these is correct. 
A)  less than 
B)  greater than 
C)  the same as 
D)  not related to 
E)  None of these is correct.

Question 11

If the volume of an estuary is 2.1 km3, and the net flow rate of mixed surface water out of the estuary is 7.5 million m3 per day, the flushing time of the estuary is ________.

Accepted Answer

A)  1 day 
B)  3.5 days 
C)  35 days 
D)  280 days 
E)  350 days 
A)  1 day 
B)  3.5 days 
C)  35 days 
D)  280 days 
E)  350 days

Question 12

A sea stack is formed from the deposition of sediment.

Accepted Answer

A) True 
 B)False

Question 13

A drowned river valley is also known as a ________ coast.

Accepted Answer

The answer of A drowned river valley is also known...

Question 14

The salt wedge in a river estuary is steeper and more sharply defined during ________.

Accepted Answer

A)  ebb tides 
B)  flood tides 
C)  low water 
D)  high water 
E)  slack water 
A)  ebb tides 
B)  flood tides 
C)  low water 
D)  high water 
E)  slack water

Question 15

An estuary with strong tidal mixing and low river input is ________.

Accepted Answer

A)  a fjord 
B)  partially mixed 
C)  well mixed 
D)  a salt wedge 
E)  All of these are correct. 
A)  a fjord 
B)  partially mixed 
C)  well mixed 
D)  a salt wedge 
E)  All of these are correct.

Question 16

Which of the following coastal engineering structures is built parallel to the shoreline?

Accepted Answer

A)  Jetty 
B)  Breakwater 
C)  Groin 
D)  Seawall 
E)  None of these is correct. 
A)  Jetty 
B)  Breakwater 
C)  Groin 
D)  Seawall 
E)  None of these is correct.

Question 17

A scarp is ________.

Accepted Answer

A)  an underwater sandbar 
B)  an abrupt change in beach slope 
C)  a beach fault line 
D)  the high-water mark on a beach 
E)  another name for a berm 
A)  an underwater sandbar 
B)  an abrupt change in beach slope 
C)  a beach fault line 
D)  the high-water mark on a beach 
E)  another name for a berm

Question 18

An abrupt change in the beach slope caused by the cutting action of waves at normal high tide is known as a beach ________.

Accepted Answer

The answer of An abrupt change in the beach slope...

Question 19

The higher berm found on a beach is formed ________.

Accepted Answer

A)  when large waves occur at low tide 
B)  during winter storm conditions 
C)  from the slumping of cliffs in the backshore 
D)  during periods of low-energy waves in the summer 
E)  when neap tides occur during the spring and summer 
A)  when large waves occur at low tide 
B)  during winter storm conditions 
C)  from the slumping of cliffs in the backshore 
D)  during periods of low-energy waves in the summer 
E)  when neap tides occur during the spring and summer

Question 20

A low-tide terrace is most likely exposed on a neap tide.

Accepted Answer

A) True 
 B)False

The low-tide terrace ________.

At present, sea level is decreasing around the world's coasts.

The net seaward flow of water in a partially mixed estuary is nearly uniform over depth.

Accumulated lag deposits protect a beach from continuing erosion.

In an estuary, T_o is always larger than T_i.

Primary coasts are coasts that have features created by marine processes.

If the seawater available to an estuary has a salinity of 30 percent and the seaward-flowing mixed water has a salinity of 20 percent at the estuary entrance, the net volume transport seaward is ________ units per day if the river input is 10 units per day.

Which type of estuary is characterized by the least variation in salinity with depth at any given point along its axis?

A coast made regular and linear by wave erosion is a secondary coast.

Calculations of flushing times assume that none of the outflowing water is recycled into the estuary. If this assumption is not correct, the actual flushing time is ________ the calculated flushing time.

If the volume of an estuary is 2.1 km³, and the net flow rate of mixed surface water out of the estuary is 7.5 million m³ per day, the flushing time of the estuary is ________.

A sea stack is formed from the deposition of sediment.

A drowned river valley is also known as a ________ coast.

The salt wedge in a river estuary is steeper and more sharply defined during ________.

An estuary with strong tidal mixing and low river input is ________.

Which of the following coastal engineering structures is built parallel to the shoreline?

A scarp is ________.

An abrupt change in the beach slope caused by the cutting action of waves at normal high tide is known as a beach ________.

The higher berm found on a beach is formed ________.

A low-tide terrace is most likely exposed on a neap tide.

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Filters

Exam 10: Coasts, Beaches, and Estuaries

The low-tide terrace ________.

At present, sea level is decreasing around the world's coasts.

The net seaward flow of water in a partially mixed estuary is nearly uniform over depth.

Accumulated lag deposits protect a beach from continuing erosion.

In an estuary, To is always larger than Ti.

Primary coasts are coasts that have features created by marine processes.

If the seawater available to an estuary has a salinity of 30 percent and the seaward-flowing mixed water has a salinity of 20 percent at the estuary entrance, the net volume transport seaward is ________ units per day if the river input is 10 units per day.

Which type of estuary is characterized by the least variation in salinity with depth at any given point along its axis?

A coast made regular and linear by wave erosion is a secondary coast.

Calculations of flushing times assume that none of the outflowing water is recycled into the estuary. If this assumption is not correct, the actual flushing time is ________ the calculated flushing time.

If the volume of an estuary is 2.1 km3, and the net flow rate of mixed surface water out of the estuary is 7.5 million m3 per day, the flushing time of the estuary is ________.

A sea stack is formed from the deposition of sediment.

A drowned river valley is also known as a ________ coast.

The salt wedge in a river estuary is steeper and more sharply defined during ________.

An estuary with strong tidal mixing and low river input is ________.

Which of the following coastal engineering structures is built parallel to the shoreline?

A scarp is ________.

An abrupt change in the beach slope caused by the cutting action of waves at normal high tide is known as a beach ________.

The higher berm found on a beach is formed ________.

A low-tide terrace is most likely exposed on a neap tide.

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Filters

In an estuary, T_o is always larger than T_i.

If the volume of an estuary is 2.1 km³, and the net flow rate of mixed surface water out of the estuary is 7.5 million m³ per day, the flushing time of the estuary is ________.