Question 1

Glacial deposits consist primarily of __________.

Accepted Answer

A)  very fine-grained material 
B)  very coarse-grained material 
C)  very well-sorted material 
D)  very poorly sorted material 
A)  very fine-grained material 
B)  very coarse-grained material 
C)  very well-sorted material 
D)  very poorly sorted material D

Question 2

Imagine you are living in your current home but during the Pleistocene Ice Age.Contrast the present climate with that of your new climate in the Pleistocene.In one sentence,summarize how the climate is different now.

Accepted Answer

Student answers should indicate the following.The climate in the Pleistocene was colder than it is today.In general,all climate belts of the northern hemisphere shifted southward during the Pleistocene Ice Age.

Question 3

What type of glacier is seen in the foreground of the following picture?

Accepted Answer

A)  a continental glacier 
B)  a cirque glacier 
C)  a piedmont glacier 
D)  an alpine glacier 
A)  a continental glacier 
B)  a cirque glacier 
C)  a piedmont glacier 
D)  an alpine glacier C

Question 4

Using the figure below,identify which way the glacier advanced.

Accepted Answer

A)  north 
B)  south 
C)  east 
D)  west 
A)  north 
B)  south 
C)  east 
D)  west

Question 5

The effect of periodic changes in the Earth's orbital eccentricity and magnitude and direction (precession)of its axial tilt on the advance and retreat of ice sheets was first proposed by ________.

Accepted Answer

A)  Richter 
B)  Milankovitch 
C)  Mohorivic 
D)  Lyell 
A)  Richter 
B)  Milankovitch 
C)  Mohorivic 
D)  Lyell

Question 6

Sediments deposited directly by glaciers as they melt are characterized by ________.

Accepted Answer

A)  uniformly coarse grain size 
B)  uniformly fine grain size 
C)  an absence of sorting 
D)  graded bedding 
A)  uniformly coarse grain size 
B)  uniformly fine grain size 
C)  an absence of sorting 
D)  graded bedding

Question 7

Explain why the deposits made by glacial outwash are stratified.

Accepted Answer

Deposits from outwash plains are stratif

Question 8

Which of the following figures is of glacial lake-bed deposits?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 9

Label the glaciers in the image below using words from the word bank included.(Hint: not all the names will be used.)
 $\begin{array}{c}
\begin{array}{lll}
 \text {Piedmont glacier}\
 \text {Continental glacier}\
 \text {Tidewater glacier}
\end{array}
\begin{array}{lll}
\
 \text {Valley glacier}\
 \text {Hanging glacier}
\end{array}
\begin{array}{lll}
 \text {Cirque glacier}\
 \text {Ice apron}\
 \text {Mountain ice car}
\end{array}
\end{array}$

Accepted Answer

The answer of Label the glaciers in the image below...

Question 10

Cirques and horns are features associated with ________.

Accepted Answer

A)  mountain glaciation 
B)  continental glaciation 
C)  glacial outwash deposits 
D)  loess deposits 
A)  mountain glaciation 
B)  continental glaciation 
C)  glacial outwash deposits 
D)  loess deposits

Question 11

You are hiking in your favorite forest when you encounter a surface that appears to have very fine scratches in it.What are these features?

Accepted Answer

A)  glacial till 
B)  moraines 
C)  striations 
D)  scour marks 
A)  glacial till 
B)  moraines 
C)  striations 
D)  scour marks

Question 12

During the last ice age,a ________ glacier covered much of the northern United States.

Accepted Answer

A)  piedmont 
B)  cirque 
C)  mountain 
D)  continental 
A)  piedmont 
B)  cirque 
C)  mountain 
D)  continental

Question 13

Currently,almost all the glaciers on the Earth are in a state of retreat,which means that the rate of ________ is less than the rate of ________.

Accepted Answer

A)  accumulation; ablation 
B)  ablation; accumulation 
C)  formation; sublimation 
D)  calving; advance 
A)  accumulation; ablation 
B)  ablation; accumulation 
C)  formation; sublimation 
D)  calving; advance

Question 14

Contrast a glacially carved valley with one carved by a river.

Accepted Answer

If you look down the length of a glacial

Question 15

Sediments deposited directly by glaciers as they melt are ________.

Accepted Answer

A)  firn 
B)  loess 
C)  outwash 
D)  till 
A)  firn 
B)  loess 
C)  outwash 
D)  till

Question 16

Identify the esker in the figure below.

Accepted Answer

A)  E 
B)  C 
C)  A 
D)  F 
A)  E 
B)  C 
C)  A 
D)  F

Question 17

A(n)________ in global sea level is ultimately the result of a ________ event.

Accepted Answer

A)  increase; global cooling 
B)  increase; local uplift 
C)  decrease; subsidence 
D)  decrease; global cooling 
A)  increase; global cooling 
B)  increase; local uplift 
C)  decrease; subsidence 
D)  decrease; global cooling

Question 18

At the present,glaciers cover about ________ of the surface of the continents.

Accepted Answer

A)  1% 
B)  5% 
C)  10% 
D)  20% 
A)  1% 
B)  5% 
C)  10% 
D)  20%

Question 19

The current interglacial interval began a little more than ________ years ago.

Accepted Answer

A)  1,000 
B)  10,000 
C)  100,000 
D)  1 million 
A)  1,000 
B)  10,000 
C)  100,000 
D)  1 million

Question 20

At depths of greater than 60 m,ice moves by plastic deformation.What causes this transition from brittle to ductile behavior?

Accepted Answer

A)  A decrease in temperature causes the glacier to melt and slide. 
B)  An increase in pressure increases friction and melts the ice. 
C)  An increase in the pressure allows for only minute deformation. 
D)  A decrease in the amount of trapped sediments allows more flow. 
A)  A decrease in temperature causes the glacier to melt and slide. 
B)  An increase in pressure increases friction and melts the ice. 
C)  An increase in the pressure allows for only minute deformation. 
D)  A decrease in the amount of trapped sediments allows more flow.

Exam 22: Amazing Ice: Glaciers and Ice Ages

Glacial deposits consist primarily of __________.

Imagine you are living in your current home but during the Pleistocene Ice Age.Contrast the present climate with that of your new climate in the Pleistocene.In one sentence,summarize how the climate is different now.

What type of glacier is seen in the foreground of the following picture?

Using the figure below,identify which way the glacier advanced.

The effect of periodic changes in the Earth's orbital eccentricity and magnitude and direction (precession)of its axial tilt on the advance and retreat of ice sheets was first proposed by ________.

Sediments deposited directly by glaciers as they melt are characterized by ________.

Explain why the deposits made by glacial outwash are stratified.

Which of the following figures is of glacial lake-bed deposits?

Label the glaciers in the image below using words from the word bank included.(Hint: not all the names will be used.) Piedmont glacier Continental glacier Tidewater glacier Valley glacier Hanging glacier Cirque glacier Ice apron Mountain ice car

Cirques and horns are features associated with ________.

You are hiking in your favorite forest when you encounter a surface that appears to have very fine scratches in it.What are these features?

During the last ice age,a ________ glacier covered much of the northern United States.

Currently,almost all the glaciers on the Earth are in a state of retreat,which means that the rate of ________ is less than the rate of ________.

Contrast a glacially carved valley with one carved by a river.

Sediments deposited directly by glaciers as they melt are ________.

Identify the esker in the figure below.

A(n)________ in global sea level is ultimately the result of a ________ event.

At the present,glaciers cover about ________ of the surface of the continents.

The current interglacial interval began a little more than ________ years ago.

At depths of greater than 60 m,ice moves by plastic deformation.What causes this transition from brittle to ductile behavior?

Cosmology and the Birth of the Earth

Journey to the Center of the Earth

Drifting Continents and Spreading Seas

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

Pages of Earths Past: Sedimentary Rocks

Metamorphism: a Process of Change

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Crags,cracks,and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of the Earth

Squeezing Power From a Stone: Energy Resources

Riches in Rock: Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: the Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

An Envelope of Gas: the Earths Atmosphere and Climate

Dry Regions: the Geology of Deserts

Global Change in the Earth System

Introducing Rocks

a Surface Veneer: Sediments and Soils

the Rock Cycle in the Earth System

the Earths Interior, Revisited: Seismic Layering, Gravity, and the Magnetic Field

Memories of Past Life: Fossils and Evolution

Ever-Changing Landscapes and the Hydrologic Cycle

Prelude: and Just What Is Geology

Filters

Currently,almost all the glaciers on the Earth are in a state of retreat,which means that the rate of is less than the rate of .

A(n) in global sea level is ultimately the result of a event.