Question 1

A spoon-shaped depression that was eroded into a mountain peak by a glacier is a(n) ____.

Accepted Answer

A)   cirque
B)   horn
C)   arête
D)   U-shaped valley A

Question 2

The end, or the foot, of a glacier is the ____________________.

Accepted Answer

terminus

Question 3

A deposit of windblown glacial silt is called ____.

Accepted Answer

A)   till
B)   loess
C)   stratified drift
D)   tillite B

Question 4

A series of lakes in a glacial valley that are strung out like beads and connected by short streams and waterfalls are called ____________________.

Accepted Answer

The answer of A series of lakes in a glacial...

Question 5

A(n) ____ is a small lake at the base of a(n) ____.

Accepted Answer

A)   tarn; cirque
B)   tarn; crevasse
C)   arête; horn
D)   arête; cirque

Question 6

Currently, Earth has only two ice sheets.

Accepted Answer

A) True 
 B)False

Question 7

The elliptical shape of Earth's orbit around the Sun is its ____________________.

Accepted Answer

The answer of The elliptical shape of Earth's orbit around...

Question 8

The lower-altitude portion of an alpine glacier where more snow melts in the summer than accumulates in the winter is called the ____.

Accepted Answer

A)   zone of ablation
B)   cirque zone
C)   zone of accumulation
D)   equilibrium altitude line

Question 9

The type of glacier movement in which ice flows as a viscous fluid is called ____.

Accepted Answer

A)   basal slip
B)   brittle deformation
C)   elastic deformation
D)   plastic flow

Question 10

The Snowball Earth hypothesis suggests that during the late-Precambrian, ice completely covered all of the continents, and the world's oceans froze over.

Accepted Answer

A) True 
 B)False

Question 11

How are paternoster lakes formed?

Accepted Answer

The answer of How are paternoster lakes formed?...

Question 12

Pressure from the weight of overlying ice favors melting at the base.

Accepted Answer

A) True 
 B)False

Question 13

Crevasses form in the ____.

Accepted Answer

A)   lower plastic zone of a glacier
B)   lower brittle zone of a glacier
C)   brittle upper 40 meters of a glacier
D)   brittle lower 40 meters of a glacier

Question 14

In a plastically flowing alpine glacier, the ____.

Accepted Answer

A)   center of the ice flows slower than the sides
B)   bottom of the glacier flows the fastest
C)   center of the ice flows faster than the sides
D)   the middle depths of the glacier flow the slowest

Question 15

The ice sheets of Greenland and Antarctica contain ____ percent of the world's ice.

Accepted Answer

A)   25
B)   75
C)   50
D)   99

Question 16

A sharp, pyramid-shaped rock summit where three or more cirques intersect near the summit is a(n) ____________________.

Accepted Answer

The answer of A sharp, pyramid-shaped rock summit where three...

Question 17

A(n) ____ is a sharp, narrow ridge of rock between two glacial valleys.

Accepted Answer

A)   tarn
B)   horn
C)   arête
D)   fjord

Question 18

Describe in detail the ice shelf that broke away from Antarctic between 2000 and 2002.

Accepted Answer

The answer of Describe in detail the ice shelf that...

Question 19

A relatively warm, ice-free, time between glaciations is called a(n) ____.

Accepted Answer

A)   precessional cycle
B)   pluvial period
C)   Milankovitch cycle
D)   interglacial period

Question 20

A ridge of till in the center of an alpine glacier that is formed when two lateral moraines merge is called a(n) ____________________.

Accepted Answer

The answer of A ridge of till in the center...

Exam 13: Glaciers and Ice Ages

A spoon-shaped depression that was eroded into a mountain peak by a glacier is a(n) ____.

The end, or the foot, of a glacier is the ____________________.

A deposit of windblown glacial silt is called ____.

A series of lakes in a glacial valley that are strung out like beads and connected by short streams and waterfalls are called ____________________.

A(n) is a small lake at the base of a(n) .

Currently, Earth has only two ice sheets.

The elliptical shape of Earth's orbit around the Sun is its ____________________.

The lower-altitude portion of an alpine glacier where more snow melts in the summer than accumulates in the winter is called the ____.

The type of glacier movement in which ice flows as a viscous fluid is called ____.

The Snowball Earth hypothesis suggests that during the late-Precambrian, ice completely covered all of the continents, and the world's oceans froze over.

How are paternoster lakes formed?

Pressure from the weight of overlying ice favors melting at the base.

Crevasses form in the ____.

In a plastically flowing alpine glacier, the ____.

The ice sheets of Greenland and Antarctica contain ____ percent of the world's ice.

A sharp, pyramid-shaped rock summit where three or more cirques intersect near the summit is a(n) ____________________.

A(n) ____ is a sharp, narrow ridge of rock between two glacial valleys.

Describe in detail the ice shelf that broke away from Antarctic between 2000 and 2002.

A relatively warm, ice-free, time between glaciations is called a(n) ____.

A ridge of till in the center of an alpine glacier that is formed when two lateral moraines merge is called a(n) ____________________.