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In which mass movements do rock fragments
fall freely through the air?
The name given to soil that contains 60% clay,
20% silt and 20% sand is...
A. Rockslide
A. Clay
B. Rockfall
B. Loam
C. Slump
C. Silty clay loam
D
Earthflow
1
D
Sandy loam
The breaking down and changing of rocks at or
near Earth's surface is called -
Which of the following is NOT a cause of
mechanical weathering?
A.Mass movement
A.Dissolving
B. Sheet erosion
B.Frost wedging
C.Weathering
C.Unloading
D Deposition
3
D Burrowing
2
4
In which type of climate does chemical
weathering occur most rapidly?
Organic matter in soil is also called-
A. Cold, dry
A. Bedrock
B. Cold, wet
B. Talus
C. Warm, dry
C. Loam
D
Warm, wet
5
D
Humus
6
A soil's texture is determined by its-
In soils with distinct soil horizons, the topmost
zone is the-
A.Water content
A.Parent material
B. Mineral composition
B. A horizon
C.Thickness
C.B horizon
D Particle sizes
7
D C horizon
8
Which of the following does NOT usually
trigger mass movements?
Which of the following best describes a
mudflow?
A.
Growth of native vegetation on slopes
A. Movement too slow to be observed directly
B.
Formation of oversteepened slopes
B.
C.
Saturation of surface materials with water
C. Material falling freely through the air
D
Vibration of the ground during an earthquake
9
Wind carrying sand grains deposits the sand
when the wind-
D
Material moving downslope as a thick fluid
Sudden movement along a flat surface
When earthworms add their wastes to the soil,
then die and decay in the soil, the are
contributing to the formation of -
A.
Slows down
A.
Silt
B.
Cools down
B.
Litter
C.
Speeds up
C.
Humus
D
Crosses a depression in the ground
D
Clay
11
10
12
Which type of mass movement can cause
property damage but never causes loss of life?
What force is primarily responsible for mass
movements?
A. Landslide
A.Acceleration
B. Creep
B. Acid rain
C. Rockfall
C. Gravity
D
Mudslide
13
If a location has been going through a drought
and then experiences very heavy amounts of rain,
this mass movement is the most likely to occur-
D Abrasion
14
Which of the following best describes a rock
fall?
A. Rockfall
A. Movement too slow to be observed directly
B.
B. Material moving downslope as a thick fluid
Mudslide
C. Landslide
D
Avalanche
15
C. Material falling freely through the air
D
Sudden movement along a flat surface
16
What must happen first for soil for form in any
location?
Which of the following ingredients of soil has
the smallest particle size?
A. Bedrock must be weathered
A. Silt
B. Humus must form
B. Sand
C. Clay must retain water
C. Clay
D
Plants must grow
17
D
Loam
18
Which of the following describe good
characteristics of sand as a soil? (there are 2)
What type of soil do I have if I've got 64% sand,
30% silt and 6% clay?
A. Does not hold onto nutrients
A. Clay
B. Water infiltrates easily
B. Silty clay
C. Good aeration
C. Clay loam
D
Holds too much water
19
D Sandy loam
20
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