Earth Science: The Changing Surface of Earth, Book G

Chapter 3: Erosional Forces

Erosional Forces

1.
Which force causes erosion to occur?
A)nuclear
B)electrical
C)gravity
D)magnetic
2.
What is erosion?
A)ocean currents near the surface
B)a process of mountain building
C)wind currents in the upper atmosphere
D)a process that wears away surface material
3.
Which type of windstorm requires the weakest wind?
A)gravel storm
B)dust storm
C)tornado
D)sandstorm
4.
Which is not a glacial deposit?
A)outwash
B)delta
C)esker
D)moraine
5.
What effect does vegetation have on erosion?
A)It increases the possibility of mass movement.
B)It speeds erosion up.
C)It has no effect whatsoever.
D)It resists erosion.
6.
What is till?
A)grooves left in the land from a glacier
B)large pieces of glacier sediment
C)small pieces of glacier sediment
D)a mixture of different-sized glacier sediment
7.
Which sediment has the smallest grain?
A)dust
B)sand
C)gravel
D)loess
8.
Which type of land suffers the least from wind erosion?
A)forest
B)plowed fields
C)desert
D)beach
9.
All glaciers __________.
A)are found near the north pole
B)move quickly
C)melted at the end of the last ice age
D)move under their own weight
10.
Most dunes __________.
A)move across the land
B)are made of gravel
C)are pushed out of the land by volcanic forces
D)stay perfectly still
11.
Where do rockfalls and rock slides commonly occur?
A)on the prairie
B)areas with steep cliffs
C)near a streambed
D)in the desert
12.
What is plucking?
A)when wind erosion moves large objects
B)when a glacier pulls a tree from its roots
C)when rocks, gravel, and sand are moved by a glacier
D)when water in a stream causes rocks to move downhill
13.
What type of glacier is Antarctica covered with?
A)valley
B)flat
C)continental
D)smooth
14.
Sand on a streambed is an example of __________.
A)slumping
B)weathering
C)deposition
D)rock formation
15.
What type of valleys are made by valley glaciers?
A)U-shaped
B)V-shaped
C)flat
D)streambed
16.
When did the last ice age end?
A)4.6 billion years ago
B)about 180,000 years ago
C)about 1,800
D)about 18,000 years ago
17.
What is a danger that is involved with building a house on the side of a hill?
A)deposition
B)wind
C)mass movement
D)glaciers
18.
Slumps, creeps, rockfalls, rock slides, and mudflows are examples of __________.
A)soil formation
B)mass movement
C)erosion from wind
D)deposition
19.
What causes dunes to form?
A)wind
B)mountain building
C)glacial deposits
D)deposits from streams
20.
What is the main difference between a creep and a slump?
A)the direction along a slope that the movement occurs
B)the distance over which the material is moved
C)the type of material that is moved
D)the speed at which the movement occurs
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