Question 1

Which statement about tsunami is false?

Accepted Answer

A)  Tsunami are almost impossible to detect in the deep ocean. 
B)  Tsunami move faster as they approach shore. 
C)  Tsunami increase in height as they approach the shore. 
D)  Tsunami cannot be caused by wind. 
A)  Tsunami are almost impossible to detect in the deep ocean. 
B)  Tsunami move faster as they approach shore. 
C)  Tsunami increase in height as they approach the shore. 
D)  Tsunami cannot be caused by wind.

Question 2

Which feature is most likely to be exposed only at low tide?

Accepted Answer

A)  a sea arch 
B)  a wave-cut platform 
C)  a sea cave 
D)  a sea stack 
A)  a sea arch 
B)  a wave-cut platform 
C)  a sea cave 
D)  a sea stack

Question 3

Which of the following is not a possible product of tides?

Accepted Answer

A)  electricity 
B)  clastic sediment 
C)  chemical sediment 
D)  tidal channels 
A)  electricity 
B)  clastic sediment 
C)  chemical sediment 
D)  tidal channels

Question 4

Which is not a characteristic of a tsunami?

Accepted Answer

A)  One giant wave is followed almost immediately by an even larger one. 
B)  The water floods far onto land for an extended period of time. 
C)  Tsunami develop suddenly and without warning. 
D)  Tsunami have extremely tall wave heights. 
A)  One giant wave is followed almost immediately by an even larger one. 
B)  The water floods far onto land for an extended period of time. 
C)  Tsunami develop suddenly and without warning. 
D)  Tsunami have extremely tall wave heights.

Question 5

The highest elevations on barrier islands are often

Accepted Answer

A)  sand dunes. 
B)  sea stacks. 
C)  extinct volcanoes. 
D)  uplifted metamorphic rock. 
A)  sand dunes. 
B)  sea stacks. 
C)  extinct volcanoes. 
D)  uplifted metamorphic rock.

Question 6

Elongate sediment ridges that project from headlands in the direction of the longshore current are called

Accepted Answer

A)  sea stacks. 
B)  berms. 
C)  spits. 
D)  groins. 
A)  sea stacks. 
B)  berms. 
C)  spits. 
D)  groins.

Question 7

Judge the following sentence according to the criteria given below. It is essential to know the rate of current sea-level rise because approximately 100 million people live around the world at locations less than 1 meter above sea level.

Accepted Answer

A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect. 
A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect.

Question 8

Figure 19.25  
-According to Figure 19.25, the largest volume of sediment delivered to this section of beach in central California comes from

Accepted Answer

A)  longshore current. 
B)  wind transport. 
C)  coastal erosion. 
D)  river transport. 
A)  longshore current. 
B)  wind transport. 
C)  coastal erosion. 
D)  river transport.

Question 9

How many people worldwide live on land that is less than one meter above sea level?

Accepted Answer

A)  1 billion 
B)  900 million 
C)  100 million 
D)  50 million 
A)  1 billion 
B)  900 million 
C)  100 million 
D)  50 million

Question 10

If the following sand grain minerals were mixed together, which one would get deposited on a beach most often because of its density?

Accepted Answer

A)  basalt 
B)  calcite 
C)  quartz 
D)  feldspar 
A)  basalt 
B)  calcite 
C)  quartz 
D)  feldspar

Question 11

The safest thing to do if you are caught in a rip current is to swim

Accepted Answer

A)  parallel to the shore. 
B)  fight the current. 
C)  parallel to the current. 
D)  perpendicular to the longshore current. 
A)  parallel to the shore. 
B)  fight the current. 
C)  parallel to the current. 
D)  perpendicular to the longshore current.

Question 12

Figure 19.42  
-According to Figure 19.42, a drowned coral reef in the Caribbean that is under 70 meters of seawater is

Accepted Answer

A)  about 7 million years old. 
B)  about 10 million years old. 
C)  about 12 million years old. 
D)  about 20 million years old. 
A)  about 7 million years old. 
B)  about 10 million years old. 
C)  about 12 million years old. 
D)  about 20 million years old.

Question 13

Over time, shorelines

Accepted Answer

A)  vary by minor features but maintain the same basic outline. 
B)  tend to retreat landward by erosion. 
C)  tend to increase seaward due to sediment deposition. 
D)  may move seaward or landward. 
A)  vary by minor features but maintain the same basic outline. 
B)  tend to retreat landward by erosion. 
C)  tend to increase seaward due to sediment deposition. 
D)  may move seaward or landward.

Question 14

A longshore current exists when

Accepted Answer

A)  waves are perpendicular to the shoreline. 
B)  waves approach the shoreline at an angle. 
C)  waves are parallel to the shoreline. 
D)  the distance between wave crests increases. 
A)  waves are perpendicular to the shoreline. 
B)  waves approach the shoreline at an angle. 
C)  waves are parallel to the shoreline. 
D)  the distance between wave crests increases.

Question 15

Judge the following sentence according to the criteria given below. The barren surface of the tidal flat exposed at low tide lacks vegetation because tidal flats form on the lagoon side of a barrier island.

Accepted Answer

A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect. 
A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect.

Question 16

Sea levels at the New York tide gage have varied greatly from year to year because of

Accepted Answer

A)  weather conditions. 
B)  rising and falling of local land forms. 
C)  melting and freezing of arctic ice. 
D)  changes in tides due to the gravity of other planets. 
A)  weather conditions. 
B)  rising and falling of local land forms. 
C)  melting and freezing of arctic ice. 
D)  changes in tides due to the gravity of other planets.

Question 17

What is relative- and absolute-sea level change?

Accepted Answer

Relative sea-level change describes a sh

Question 18

Explain how a wave moves water.

Accepted Answer

Particles suspended in the water move th

Question 19

The elapsed time between the passage of successive wave crests past a stationary point is called

Accepted Answer

A)  wavelength. 
B)  wave base. 
C)  wave period. 
D)  wave height. 
A)  wavelength. 
B)  wave base. 
C)  wave period. 
D)  wave height.

Question 20

Based on shoreline deposits from 125,000 years ago, scientists believe that the sea will ________ before the next ice age.

Accepted Answer

A)  rise 5-6 meters 
B)  rise 10-12 meters 
C)  drop 1-2 meters 
D)  drop 10-12 meters 
A)  rise 5-6 meters 
B)  rise 10-12 meters 
C)  drop 1-2 meters 
D)  drop 10-12 meters

Exam 19: Shorelines: Changing Landscapes Where Land Meets Sea

Which statement about tsunami is false?

Which feature is most likely to be exposed only at low tide?

Which of the following is not a possible product of tides?

Which is not a characteristic of a tsunami?

The highest elevations on barrier islands are often

Elongate sediment ridges that project from headlands in the direction of the longshore current are called

Judge the following sentence according to the criteria given below. It is essential to know the rate of current sea-level rise because approximately 100 million people live around the world at locations less than 1 meter above sea level.

Figure 19.25 -According to Figure 19.25, the largest volume of sediment delivered to this section of beach in central California comes from

How many people worldwide live on land that is less than one meter above sea level?

If the following sand grain minerals were mixed together, which one would get deposited on a beach most often because of its density?

The safest thing to do if you are caught in a rip current is to swim

Figure 19.42 -According to Figure 19.42, a drowned coral reef in the Caribbean that is under 70 meters of seawater is

Over time, shorelines

A longshore current exists when

Judge the following sentence according to the criteria given below. The barren surface of the tidal flat exposed at low tide lacks vegetation because tidal flats form on the lagoon side of a barrier island.

Sea levels at the New York tide gage have varied greatly from year to year because of

What is relative- and absolute-sea level change?

Explain how a wave moves water.

The elapsed time between the passage of successive wave crests past a stationary point is called

Based on shoreline deposits from 125,000 years ago, scientists believe that the sea will ________ before the next ice age.

Why Study Earth

Minerals: Building Blocks of the Planet

Rocks and Rock-Forming Processes

Formation of Magma and Igneous Rocks

Formation of Sediment and Sedimentary Rocks

Formation of Metamorphic Rocks

Earth Materials As Time Keepers

Earth Materials As Time Keepers

Making Earth

Motion Inside Earth

Deformation of Rocks

Global Tectonics: Plates and Plumes

Tectonics and Surface Relief

Soil Formation and Landscape Stability

Mass Movements: Landscapes in Motion

Streams: Flowing Water Shapes the Landscape

Water Flowing Underground

Glaciers: Cold-Climate Sculptors of Continents

Wind: a Global Geologic Process

Global Warming: Real Time Change in the Earth System

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