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Practice Quiz
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1
Mechanical weathering of soil
A)occurs quickly.
B)does not change the chemical nature of the rock.
C)changes the chemical makeup of the parent material.
D)is not important in soil production.
2
The best soil type for agriculture is
A)clay.
B)silt.
C)sand.
D)loam.
3
Erosion is the transportation of soil by wind only.
A)True
B)False
4
In order to reduce soil erosion from very steep slopes, the best tillage practice would be
A)contour farming.
B)strip farming.
C)terracing.
D)windbreaks.
5
Compared to conventional tillage, conservation tillage requires
A)less time involved and less fuel use per hectare.
B)less time involved and more fuel use per hectare.
C)more time involved and more fuel use per hectare.
D)more time involved and less fuel use per hectare.
6
Soil erosion can be reduced by strip farming.
A)True
B)False
7
Soil conservation practices include
A)windbreaks.
B)soil profiling.
C)soil formation.
D)pesticide use.
8
The concept that the outer surface of the Earth consists of large moving plates is called
A)lithosphere.
B)mantle.
C)crust tectonics.
D)plate tectonics.
9
Land is part of the world not covered by
A)trees.
B)shrubs.
C)rivers.
D)oceans.
10
Soil texture is determined by the size of the mineral particles within the soil.
A)True
B)False
11
The process where water moves through the "A" horizon carrying dissolved organic matter and minerals to lower layers is known as
A)leaching.
B)filtration.
C)bleaching.
D)desertification.
12
Reducing tillage minimizes the loss of
A)organic matter.
B)soil structure.
C)pests.
D)All of the above are correct.







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