Question 1

There is good evidence that variation in solar energy, as evinced by sunspot activity cycles, is responsible for short-term climatic variations.

Accepted Answer

A) True 
 B)False

Question 2

In the process of sublimation, ____.

Accepted Answer

A) ice melts to become liquid water, which then evaporates 
B) fresh snow becomes firn and then glacial ice 
C) ice changes directly into water vapor 
D) white ice becomes denser so that blue wavelengths are transmitted and scattered and the ice appears blue 
E) small crystals of ice become larger 
A) ice melts to become liquid water, which then evaporates 
B) fresh snow becomes firn and then glacial ice 
C) ice changes directly into water vapor 
D) white ice becomes denser so that blue wavelengths are transmitted and scattered and the ice appears blue 
E) small crystals of ice become larger

Question 3

A glacier begins to flow when the ice reaches what critical thickness?

Accepted Answer

A) 5 meters 
B) 10 meters 
C) 20 meters 
D) 40 meters 
E) 100 meters 
A) 5 meters 
B) 10 meters 
C) 20 meters 
D) 40 meters 
E) 100 meters

Question 4

A glacier that is unconfined by topography and has tributaries is a(n)____.

Accepted Answer

A) ice cap 
B) tributary glacier 
C) continental glacier 
D) valley glacier 
E) alpine glacier 
A) ice cap 
B) tributary glacier 
C) continental glacier 
D) valley glacier 
E) alpine glacier

Question 5

According to the Milankovitch theory, variations in Earth's orbit and axial tilt can trigger long-term climatic changes and prompt the start and end of ice ages.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is an erosional feature of glaciers?

Accepted Answer

A) glacial erratics 
B) terminal moraines 
C) drumlins 
D) cirques 
E) eskers 
A) glacial erratics 
B) terminal moraines 
C) drumlins 
D) cirques 
E) eskers

Question 7

The boundary between the zones of accumulation and wastage is called the ____________________.

Accepted Answer

The answer of The boundary between the zones of accumulation...

Question 8

In a cross-section of a glacier, where do the greatest flow velocities occur?

Accepted Answer

A) at the surface 
B) in the few tens of meters below the surface 
C) in the few tens of meters above the base 
D) at the base 
E) in the center of the flow 
A) at the surface 
B) in the few tens of meters below the surface 
C) in the few tens of meters above the base 
D) at the base 
E) in the center of the flow

Question 9

What term describes the straight scratches on rock surfaces created by glacial abrasion?

Accepted Answer

A) rock flour 
B) glacial striations 
C) glacial till 
D) varves 
E) moraines 
A) rock flour 
B) glacial striations 
C) glacial till 
D) varves 
E) moraines

Question 10

Glacial striations, roche moutonées, and drumlins allow scientists to identify the direction of glacial movement.

Accepted Answer

A) True 
 B)False

Question 11

A terminal moraine marks the ____.

Accepted Answer

A) fartherest a glacier can spread from side-to-side 
B) location where the glacier started to form 
C) farthermost point of a glacier's advance 
D) location where outwash forms 
E) boundary between two glaciers 
A) fartherest a glacier can spread from side-to-side 
B) location where the glacier started to form 
C) farthermost point of a glacier's advance 
D) location where outwash forms 
E) boundary between two glaciers

Question 12

Extremely deep glacial valleys that formed below present day sea-level are called ___________________.

Accepted Answer

The answer of Extremely deep glacial valleys that formed below...

Question 13

Continental glaciers generally flow on the order of centimeters to meters per day.

Accepted Answer

A) True 
 B)False

Question 14

Is ice a mineral? Explain.

Accepted Answer

Yes, ice is a mineral. It is a

Question 15

Which of the following is a depositional feature of glaciers?

Accepted Answer

A) cirque 
B) arête 
C) horn 
D) roche moutonée 
E) end moraine 
A) cirque 
B) arête 
C) horn 
D) roche moutonée 
E) end moraine

Question 16

How much of Earth's surface is covered by glaciers?

Accepted Answer

A) 1% 
B) 2% 
C) 5% 
D) 10% 
E) 20% 
A) 1% 
B) 2% 
C) 5% 
D) 10% 
E) 20%

Question 17

What is a lake formed within a cirque?

Accepted Answer

A) arête 
B) esker 
C) tarn 
D) fjord 
E) drumlin 
A) arête 
B) esker 
C) tarn 
D) fjord 
E) drumlin

Question 18

The health of a glacier and the glacial budget are determined primarily by ____.

Accepted Answer

A) comparing one glacier to others in the nearby vicinity 
B) measuring the rate of glacial movement 
C) the thickness of ice 
D) testing the quality of its meltwater 
E) the amount of snowfall and temperature 
A) comparing one glacier to others in the nearby vicinity 
B) measuring the rate of glacial movement 
C) the thickness of ice 
D) testing the quality of its meltwater 
E) the amount of snowfall and temperature

Exam 14: Glaciers and Glaciation

There is good evidence that variation in solar energy, as evinced by sunspot activity cycles, is responsible for short-term climatic variations.

In the process of sublimation, ____.

A glacier begins to flow when the ice reaches what critical thickness?

A glacier that is unconfined by topography and has tributaries is a(n)____.

According to the Milankovitch theory, variations in Earth's orbit and axial tilt can trigger long-term climatic changes and prompt the start and end of ice ages.

Which of the following is an erosional feature of glaciers?

The boundary between the zones of accumulation and wastage is called the ____________________.

In a cross-section of a glacier, where do the greatest flow velocities occur?

What term describes the straight scratches on rock surfaces created by glacial abrasion?

Glacial striations, roche moutonées, and drumlins allow scientists to identify the direction of glacial movement.

A terminal moraine marks the ____.

Extremely deep glacial valleys that formed below present day sea-level are called ___________________.

Continental glaciers generally flow on the order of centimeters to meters per day.

Is ice a mineral? Explain.

Which of the following is a depositional feature of glaciers?

How much of Earth's surface is covered by glaciers?

What is a lake formed within a cirque?

The health of a glacier and the glacial budget are determined primarily by ____.

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: The Building Blocks of Rocks

Igneous Rocks and Plutons

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earthapos;s Interior

Deformation, Mountain Building, and Earthapos;s Crust

Mass Wasting

Running Water--Streams and Rivers

Groundwater

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Organic Evolution--The Theory and Its Supporting Evidence

Precambrian Earth and Life History

Paleozoic Earth History

Paleozoic Life History

Mesozoic Earth and Life History

Cenozoic Earth and Life History

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