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Chapter 6 Weathering
Test Description: Chapter 6 test review: weathering
Instructions: Answer all questions to get your test result.
1) A permeable rock will easily weather because
A
it is made up very small particles
B
it is made up of only one type of mineral
C
it is made up of many different mineral types
D
it contains small airspaces (holes)
2) Most of the work of mixing humus is done by
A
worms
B
fungi
C
bacteria
D
ants
3) What layer of soil would you find humus rich loam in?
A
C horizon
B
A horizon
C
bedrock
D
B horizon
4) What principles states that the same process operating today operated in the past?
A
mechanical weathering
B
soil conservation
C
chemical weathering
D
uniformitariansim
5) Ice wedging causes mechanical weathering by
A
animal actions
B
freezing and thawing
C
plant growth
D
heating and cooling
6) The mineral compostion of rocks change during
A
general weathering
B
mechanical weathering
C
chemical weathering
D
mechanical and chemical weathering
7) Climates that are both hot and wet cause weathering to take place
A
slowly
B
quickly
C
at the same rate as in climates that are cool and dry
D
unevenly
8) What are the 2 most important factors in determining the rate of weathering
A
carbon dioxide and acid rain
B
abrasion adn acids from plant roots
C
animal actions and oxygen
D
rock type and climate
9) Living organisms can help soil to
A
mix the soil
B
bulid up the C horizon
C
slow the rate of soil formation
D
prevent the formation of humus
10) The management of soil to prevent its destruciton is
A
soil decompostion
B
soil conservation
C
soil fertility
D
soil exhaustion
*select an answer for all questions
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