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Weathering, Erosion, And Soil Formation
Test Description: Weathering, Erosion, and Soil Formation
Instructions: Answer all questions to get your test result.
1) What soil layer forms last?
A
Bedrock
B
A horizon
C
B horizon
D
C horizon
2) What soil layer has the most humus?
A
B horizon
B
Bedrock
C
A horizon
D
C horizon
3) What soil layer is made mostly of clay and minerals?
A
C horizon
B
B horizon
C
Bedrock
D
A horizon
4) What layer is made of only partially weathered rock?
A
A horizon
B
Bedrock
C
B horizon
D
C horizon
5) What layer contains the basic building block of soil?
A
B horizon
B
A horizon
C
bedrock
D
C horizon
6) What is litter?
A
it can be any of the above
B
trash
C
loose leaves and stems
D
all of the living things in the soil
7) Where is litter located?
A
above the C horizon
B
in the A horizon
C
in the C horizon
D
above the A horizon
8) What are two ways to prevent topsoil erosion?
A
contour plowing and conservation plowing
B
crop rotation and conservation plowing
C
crop rotation and contour plowing
D
crop rotation and no till
9) What are the 5 ingredients of soil?
A
humus, air, water, minerals, fertilizer, and rock particles
B
air, water, earthworms, minerals, rocks
C
minerals, air, water, humus, rock particles
D
air, water, minerals, rock particles, and leaves
10) How can farmers prevent soil exhaustion?
A
plant the crops using no till
B
use crop rotation
C
use contour plowing
D
plant the crops in circles instead of rows
11) What is the correct order in which the soil horizons form?
A
CBA
B
BCA
C
ABC
D
CAB
12) How are weathering and erosion different?
A
weathering breaks rocks into smaller pieces and erosion carries rocks to a new location
B
weathering breaks rocks into smaller pieces and erosion creates litter
C
weathering and erosion are basically the same thing
D
weathering moves rocks to a new place and erosion creates soil
*select an answer for all questions
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