Week 6: Soil and Agriculture Answers

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1
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Which of the following is the most damaging method of soil remediation?

A
soil excavation and disposal
B
soil aeration
C
heating and vapor extraction
D
microbial digestion
2
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Crop rotation is a method of soil conservation because _______.

A
the land produces more than one type of crop
B
it requires plowing and tilling that reduces soil compaction
C
it does not use the same parcel of land in sequential seasons
D
it avoids the depletion of soil nutrients
3

Which of the following is not an agricultural technique?

A
irrigation
B
selective breeding
C
livestock herding
D
none of the above
4

Victory gardens were used in World Wars I and II to augment the public food supply and aid the war effort.

A
T
B
F
5

Which of the following are some reasons for the variations in agricultural practices around the world?

A
topography
B
tradition
C
amount of rainfall
D
all of the above
6

The same agricultural practices are used in every country of the world.

A
T
B
F
7

Contour farming is a method for plowing across the slope of steep hills.

A
T
B
F

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