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Earth Science Weathering
Test Description: Weathering and Erosion
Instructions: Answer all questions to get your test result.
1) Soil is a mixture of weathered rock and __________.
A
mineral fragments
B
water and air
C
All of these
D
decayed organic matter
2) The layer of soil that contains the most humus and smaller rock and mineral particles that the other layers is the __________ horizon.
A
B
B
A
C
C
D
D
3) The organic material in humus includes __________.
A
weathered rocks
B
sand
C
plant leaves and stems
D
air
4) Compared to the A horizon in a soil profile, the B horizon __________.
A
is lighter in color
B
contains material leached from the A horizon
C
contains less humus
D
all of these
5) The difference between mechanical and chemical weathering is __________.
A
the length of time each takes to break up rock
B
that only chemical weathering involves water
C
only one changes the chemical composition of a rock
D
that each occurs in different parts of the world
6) A process that wears away surface materials and moves them to a different location.
A
creep
B
erosion
C
deposition
D
deflation
7) Mass movement when sediments slowly inch their way down a slope.
A
deposition
B
creep
C
deflation
D
erosion
8) Wind erosion of loose sediments.
A
deposition
B
erosion
C
creep
D
deflation
9) A mixture of different-sized sediments deposited by a glacier.
A
till
B
deposition
C
loess
D
dunes
10) Deposits formed when windblown sediments settle and build up behind an obstacle.
A
deposition
B
dunes
C
till
D
loess
*select an answer for all questions
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