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Chapter 6 Test
Test Description: Intro to soil
Instructions: Answer all questions to get your test result.
1) Ice wedging causes mechanical weathering of rock by means of
A
plant growth
B
freezing and thawing of water
C
animal actions
D
heating and cooling
2) What kind of weathering causes the mineral composition of rocks to change?
A
Mechanical Weathering
B
Permeable weathering
C
chemical weathering
D
general weathering
3) A hot wet climate causes weathering to take place
A
slowly
B
unevenly
C
at the sam rate as a clool dry one
D
fast
4) The most important factors in determining the rate of weathering are
A
abrasion and acid from plant roots
B
animal actions and oxygen
C
rock type and climate
D
carbon dioxide and acid rain
5) What term describes the management of soil to prevent its distruction?
A
soil exhaustion
B
soil decomposition
C
soil conservation
D
soil fertility
6) Most of the work of mixing humus within the soil is done by
A
earthworms
B
bacteria
C
ants
D
fungi
7) In which soil layer would you find loam that is rich in humus?
A
A
B
C
C
B
D
Bedrock
8) The grological principle stating that the same processes that that operate today also operated in the past
A
Mechanical weathering
B
chemical weathering
C
uniformitarianism
D
soil conservation
9) Living organisms in soil help to
A
build up the C horizon
B
Mix the soil and make humus
C
prevent the formation of humus
D
slow the rate of soil formation
10) What is the process that breaks down rock?
A
soil conservation
B
Acid rain
C
Erosion
D
Weathering
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