Soil Around the World Answers

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1
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How is over-irrigation damaging to soil?

A
It reduces the amount of organic material in soil.
B
It results in the accumulation of salt near the soil surface.
C
It increases the acidity of soil.
D
It removes water from the water table.
2
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Soil compaction results from _______.

A
the reduction or elimination of pore space in soil
B
the weight of heavy machinery on soil
C
livestock walking over soil
D
all of the above
3

Why is volcanic soil (andisol) very fertile?

A
It is rich in minerals from volcanic deposits.
B
It is a young soil with low water retention.
C
It has been leached of mineral nutrients.
D
Volcanic activity warms the soil.
4

The organisms native to an area will impact the types of soil found in that area.

A
T
B
F
5

Utilizing ultisols for agriculture requires _______.

A
extensive irrigation
B
fertilizer to balance the high alkalinity of the soil
C
adding organic matter to supplement the shallow horizons
D
fertilizer to replace nutrients that leach from the soil
6

There is no direct way to reduce soil compaction caused by agricultural practices.

A
T
B
F
7

Which of the following is not a defining characteristic of soil?

A
mineral composition
B
humidity
C
texture
D
color
8

Where are the effects of soil salinization most likely to be seen?

A
inland farmland
B
mountain communities
C
coastal farmland
D
coastal cities
9

Lower temperatures lead to slower soil formation.

A
T
B
F
10

Histosols experience a fast rate of decomposition. Please select the best answer from the choices provided

A
T
B
F

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