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Chapter 15.1 Review - Soil
Test Description: CPO Earth Science
Instructions: Answer all questions to get your test result.
1) If soil is aerated it always contains:
A
bacteria.
B
insects.
C
air.
D
fertilizer.
2) Erosion can be caused by:
A
deforestation
B
grazing of livestock.
C
All of the above
D
construction
3) The organic matter in nature produced by bacterial decay of plant and animal matter is kow as:
A
humus
B
compost
C
sediment
D
manuer
4) The BEST soil for growing crops contains:
A
humus, water, air, and minerals
B
humus, water, and air
C
sand
D
humus
5) Earthworms are important in soil because they do all of the following except
A
Loosen soil so water can get into the soil
B
Help plants get nitrogren from the asmosphere
C
Loosen soil for roots to grow.
D
Loosen soil so air can get into the soil
6) To be considered loam, soil must contain all of the following EXCEPT:
A
water
B
organic material
C
clay
D
sand
7) Soil will form most quickly in a climate that is:
A
warm and dry
B
warm and moist
C
cold and moist
D
cold and dry
8) In the process of soil formation, the parent rock or mineral influences all of the characteristics of the soil formed EXCEPT its:
A
texture
B
chemical nature
C
humus content
D
color
9) Permafrost would most likely be found in the state of :
A
New Mexico
B
Georgia
C
Alaska
D
Hawaii
10) The WORST soil in whci to grow crops for many years is:
A
peat moss
B
pedocal
C
pedalfer
D
laterite
*select an answer for all questions
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