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Practice Quiz
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1

Mechanical weathering of soil
A)Does not change the chemical nature of the rock
B)Occurs quickly
C)Changes the chemical make up of the parent material
D)None of the above
2

Examples of chemical weathering processes of soil include
A)Oxidation
B)Hydrolysis
C)Dissolution
D)All of the above
3

Biological processes do not play a role in soil development.
A)True
B)False
4

Most plants grow well in soil with a pH of between
A)1 and 3
B)3 and 5
C)6 and 7
D)8 and 10
5

The best soil type for agriculture is
A)Clay
B)Loam
C)Sand
D)All of the above
6

Soil litter is a term used to describe
A)Materials left on the ground by people
B)Undecomposed or partially decomposed organic matter on the land surface
C)Rocks exposed at the land surface
D)Clay at the land surface
7

Erosion is the transportation of soil by water, wind or ice.
A)True
B)False
8

Topsoil is found in which soil horizon?
A)A horizon
B)B horizon
C)C Horizon
D)E Horizon
9

In order to reduce soil erosion from very steep slopes, the best tillage practice would be
A)Contour farming
B)Terracing
C)Strip farming
D)All of the above
10

Land degradation affects approximately what percent of the world's rain-fed agricultural lands
A)20
B)40
C)60
D)80
11

Compared to conventional tillage, conservation tillage requires
A)More 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)Less time involved and less fuel use per hectare





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