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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
insects.
B
bacteria.
C
fertilizer.
D
air.
2) Erosion can be caused by:
A
deforestation
B
grazing of livestock.
C
construction
D
All of the above
3) The organic matter in nature produced by bacterial decay of plant and animal matter is kow as:
A
manuer
B
humus
C
sediment
D
compost
4) The BEST soil for growing crops contains:
A
humus, water, air, and minerals
B
sand
C
humus, water, and air
D
humus
5) Earthworms are important in soil because they do all of the following except
A
Help plants get nitrogren from the asmosphere
B
Loosen soil so water can get into the soil
C
Loosen soil so air can get into the soil
D
Loosen soil for roots to grow.
6) To be considered loam, soil must contain all of the following EXCEPT:
A
water
B
sand
C
organic material
D
clay
7) Soil will form most quickly in a climate that is:
A
cold and moist
B
warm and dry
C
warm 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
humus content
B
color
C
chemical nature
D
texture
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
laterite
C
pedocal
D
pedalfer
*select an answer for all questions
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