The Solid Earth - Chapter 4: Glacial Movement

Question 1

The name for the movement of glacial ice

Answer 1

flow

Question 2

Name the two basic types of ways that ice flows

Answer 2

internal movement within the ice

whole ice mass slipping

Question 3

The lowest portions of most glaciers are thought to move by this sliding process

Answer 3

whole ice mass slipping along the ground

Question 4

True or false: just as in streams, frictional drag with the bedrock floor results in the lower portions of the glacier moving more quickly

Answer 4

False; SLOWLY

Question 5

The uppermost portion of a glacier that consists of brittle ice

Answer 5

zone of fracture

Question 6

When the glacier moves over irregular terrain, the zone of the fracture is subjected to tension with cracks called ___ resulting

Answer 6

crevasses

Question 7

Where is the flow of the glacier the greatest?

Answer 7

The center

Question 8

Why do the sides of the glacier move slower than the center?

Answer 8

Friction with valley walls

Question 9

What is the raw material from which glacial ice originates?

Answer 9

snow

Question 10

Glaciers are constantly gaining and losing __

Answer 10

ice

Question 11

Where does snow accumulation and ice formation occur

Answer 11

Zone of accumulation

Question 12

The area beyond the zone of accumulation where snow and ice from before melt

Answer 12

zone of wastage

Question 13

This process creates icebergs in places where glaciers reach the sea as large pieces of ice break off the front

Answer 13

calving

Question 14

The movement of the glacier (remaining, progressing, retreating) depends on the budget of the glacier or the balance between accumulation and ____

Answer 14

ablation

Question 15

Is ablation or accumulation greater if the glacier is retreating

Answer 15

Ablation