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