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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
animal actions
C
freezing and thawing of water
D
heating and cooling
2) What kind of weathering causes the mineral composition of rocks to change?
A
chemical weathering
B
Mechanical Weathering
C
general weathering
D
Permeable 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
animal actions and oxygen
B
abrasion and acid from plant roots
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 conservation
B
soil exhaustion
C
soil decomposition
D
soil fertility
6) Most of the work of mixing humus within the soil is done by
A
earthworms
B
ants
C
bacteria
D
fungi
7) In which soil layer would you find loam that is rich in humus?
A
C
B
Bedrock
C
B
D
A
8) The grological principle stating that the same processes that that operate today also operated in the past
A
soil conservation
B
uniformitarianism
C
chemical weathering
D
Mechanical weathering
9) Living organisms in soil help to
A
prevent the formation of humus
B
Mix the soil and make humus
C
slow the rate of soil formation
D
build up the C horizon
10) What is the process that breaks down rock?
A
Weathering
B
soil conservation
C
Acid rain
D
Erosion
*select an answer for all questions
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