Soil Around the World Answers

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Aridisols are soils characteristically found in _______.

forests

plains

deserts

swamps

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Why is volcanic soil (andisol) very fertile?

It is rich in minerals from volcanic deposits.

It is a young soil with low water retention.

It has been leached of mineral nutrients.

Volcanic activity warms the soil.

Soil compaction results from _______.

the reduction or elimination of pore space in soil

the weight of heavy machinery on soil

livestock walking over soil

all of the above

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

Why might soils rich in organic matter not be fertile?

Soil fertility comes from a balance of organic matter and other mineral nutrients.

Large amounts of organic material make soil retain too little water.

Soil fertility is a result of the inorganic minerals present.

Soils rich in organic material are always highly fertile.

What characteristic is shared by both inceptisols and entisols, the soils of flood plains?

They both have well-developed soil horizons and profiles.

Both are young and only beginning to develop horizons and a soil profile.

They are both at the final stage of soil development.

None of the above

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

mineral composition

humidity

texture

color

Utilizing ultisols for agriculture requires _______.

extensive irrigation

fertilizer to balance the high alkalinity of the soil

adding organic matter to supplement the shallow horizons

fertilizer to replace nutrients that leach from the soil

Soil compaction can result in increased flooding in an area.

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

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