Question 1

In the United States, the_________ states are most closely associated with gleization.

Accepted Answer

A)   Gulf Coast
B)   Rocky Mountain
C)   East Coast
D)   Great Lakes
E)   West Coast

Question 2

The pedogenic regime typified by silica removal and iron- aluminum concentration near the surface is ________.

Accepted Answer

A)   gleization
B)   laterization
C)   podzolization
D)   calcification
E)   salinization

Question 3

In terms of a typical soil- water balance, which season is associated with a soil water surplus?

Accepted Answer

A)   summer
B)   the one which is warmest
C)   spring
D)   the one with the greatest evapotranspiration
E)   none of the above

Question 4

The true soil layer is known as __________.

Accepted Answer

A)   an oxisol
B)   the interstices
C)   loam
D)   the solum
E)   all of the above

Question 5

The upper layer in a diagnostic horizon is called the_______ .

Accepted Answer

A)   epipedon
B)   eluviation
C)   podzol
D)   silica
E)   illuviation

Question 6

The B horizon is usually called ___________.

Accepted Answer

A)   litter
B)   topsoil
C)   regolith
D)   colloids
E)   subsoil

Question 7

The ________soil order tends to form the deepest soils.

Accepted Answer

The answer of The ________soil order tends to form the...

Question 8

Humus has a consistency not unlike that of________ .

Accepted Answer

A)   putty
B)   sponges
C)   rock
D)   gelatin
E)   roast beef

Question 9

The soils which are red with a surface layer containing much aluminum and iron are________ .

Accepted Answer

A)   Ultisols
B)   Histosols
C)   Spodosols
D)   Oxisols
E)   Aridisols

Question 10

Mature tropical soils are generally noteworthy for their___________ color.

Accepted Answer

A)   tan
B)   white
C)   gray
D)   red
E)   black

Question 11

Soil structure is usually determined by clumps called __________________.

Accepted Answer

A)   solum
B)   peds
C)   catenas
D)   loam
E)   colloids

Question 12

Eluvial materials are deposited in the soil's ____horizon.

Accepted Answer

A)   A
B)   O
C)   B
D)   E
E)   R

Question 13

The shallowest soils can be found in which regions?

Accepted Answer

A)   warm and wet
B)   cold and dry
C)   warm and dry
D)   cold and wet
E)   rainforests

Question 14

The difference between field capacity and the wilting point is called _________.

Accepted Answer

A)   available soil moisture
B)   soil moisture
C)   runoff
D)   capillary water
E)   groundwater

Question 15

A major determinant of a soil's water holding capacity is its_________.

Accepted Answer

A)   microorganisms
B)   structure
C)   soil profile
D)   colloids
E)   pH value

Question 16

Utisols are generally lack _______.

Accepted Answer

A)   aluminum
B)   humus
C)   clay
D)   phosphorus
E)   iron

Question 17

Much soil material is actually wasted bits of rocks and composed of _______.

Accepted Answer

A)   air
B)   silica
C)   hydrogen
D)   humus
E)   loam

Question 18

_______brings soil materials from the A horizon to the B horizon.

Accepted Answer

A)   Addition
B)   Transformation
C)   Translocation
D)   Loss
E)   Porosity

Question 19

The________ is a diagram commonly used to illustrate the relative percentages of sand, silt, and clay in soil.

Accepted Answer

The answer of The________ is a diagram commonly used to...

Question 20

Parent material is closely associated with which soil- forming factor?

Accepted Answer

A)   topographic
B)   geologic
C)   biological
D)   climatic
E)   chronological

Exam 12: Soils

In the United States, the_________ states are most closely associated with gleization.

Correct AnswerverifiedShow Answer

The pedogenic regime typified by silica removal and iron- aluminum concentration near the surface is ________.

Correct AnswerverifiedShow Answer

Humus has a consistency not unlike that of________ .

Correct AnswerverifiedShow Answer

_______brings soil materials from the A horizon to the B horizon.

Correct AnswerverifiedShow Answer

A major determinant of a soil's water holding capacity is its_________.

Correct AnswerverifiedShow Answer

The________ is a diagram commonly used to illustrate the relative percentages of sand, silt, and clay in soil.

Correct AnswerverifiedShow Answer

The shallowest soils can be found in which regions?

Correct AnswerverifiedShow Answer

The soils which are red with a surface layer containing much aluminum and iron are________ .

Correct AnswerverifiedShow Answer

The ________soil order tends to form the deepest soils.

Correct AnswerverifiedShow Answer

The B horizon is usually called ___________.

Correct AnswerverifiedShow Answer

Mature tropical soils are generally noteworthy for their___________ color.

Correct AnswerverifiedShow Answer

Parent material is closely associated with which soil- forming factor?

Correct AnswerverifiedShow Answer

Much soil material is actually wasted bits of rocks and composed of _______.

Correct AnswerverifiedShow Answer

In terms of a typical soil- water balance, which season is associated with a soil water surplus?

Correct AnswerverifiedShow Answer

The true soil layer is known as __________.

Correct AnswerverifiedShow Answer

Soil structure is usually determined by clumps called __________________.

Correct AnswerverifiedShow Answer

The difference between field capacity and the wilting point is called _________.

Correct AnswerverifiedShow Answer

The upper layer in a diagnostic horizon is called the_______ .

Correct AnswerverifiedShow Answer

Eluvial materials are deposited in the soil's ____horizon.

Correct AnswerverifiedShow Answer

Utisols are generally lack _______.

Correct AnswerverifiedShow Answer

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