Question 1

Seeds germinate mainly in the ________ horizon.

Accepted Answer

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

Question 2

________ are roughly similar to Alfisols except that they are more thoroughly weathered and more completely leached of nutrient bases.

Accepted Answer

The answer of ________ are roughly similar to Alfisols except...

Question 3

The measure of acidity/alkalinity in soils is based on the relative concentration of active hydrogen ions.

Accepted Answer

A) True 
 B)False

Question 4

An Alfisol is most closely related to

Accepted Answer

A)  an Andisol. 
B)  the tropical desert. 
C)  heavy weathering. 
D)  the tundra. 
E)  transitional environments. 
A)  an Andisol. 
B)  the tropical desert. 
C)  heavy weathering. 
D)  the tundra. 
E)  transitional environments.

Question 5

If you lived in Texas or California and your house foundation crumbled because the soil swelled when it was wet and cracked when it was dry, chances are that the soil would be a(n)

Accepted Answer

A)  Alfisol. 
B)  Mollisol. 
C)  Oxisol. 
D)  Entisol. 
E)  Vertisol. 
A)  Alfisol. 
B)  Mollisol. 
C)  Oxisol. 
D)  Entisol. 
E)  Vertisol.

Question 6

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

Accepted Answer

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

Question 7

Field capacity is the maximum amount of water that can be retained in the soil after gravitational water has drained away.

Accepted Answer

A) True 
 B)False

Question 8

In cool climates, areas of poor drainage have pedogenic regimes of gleization.

Accepted Answer

A) True 
 B)False

Question 9

After gravitational water has drained away, ________ is the water that remains in the soil and is available for use by plants.

Accepted Answer

A)  groundwater 
B)  hygroscopic water 
C)  capillary water 
D)  water of cohesion 
E)  free water 
A)  groundwater 
B)  hygroscopic water 
C)  capillary water 
D)  water of cohesion 
E)  free water

Question 10

The most weathered and leached of all soils are the ________.

Accepted Answer

A)  Spodosols 
B)  Alfisols 
C)  Inceptisols 
D)  Aridisols 
E)  Oxisols 
A)  Spodosols 
B)  Alfisols 
C)  Inceptisols 
D)  Aridisols 
E)  Oxisols

Question 11

The soil classification system currently in use in the United States is called the ________.

Accepted Answer

A)  Great Soil Group 
B)  Soil Taxonomy 
C)  Latin System 
D)  Edaphic Index 
E)  Pedogenic Factor 
A)  Great Soil Group 
B)  Soil Taxonomy 
C)  Latin System 
D)  Edaphic Index 
E)  Pedogenic Factor

Question 12

The productive wheat lands of parts of Washington, Oregon, and Idaho are underlain by soils incorporating volcanic ash and classified as ________.

Accepted Answer

A)  Andisols 
B)  Mollisols 
C)  Alfisols 
D)  Oxisols 
E)  Histosols 
A)  Andisols 
B)  Mollisols 
C)  Alfisols 
D)  Oxisols 
E)  Histosols

Question 13

Acid soils deprive plants of nutrients by the process of leaching.

Accepted Answer

A) True 
 B)False

Question 14

Organic matter usually comprises about ________ percent of total soil volume.

Accepted Answer

A)  5 
B)  10 
C)  25 
D)  35 
E)  95 
A)  5 
B)  10 
C)  25 
D)  35 
E)  95

Question 15

The regolith is found on top of the soil.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following represents an addition to soil water?

Accepted Answer

A)  percolation 
B)  evaporation 
C)  transpiration 
D)  weathering 
E)  none of the above 
A)  percolation 
B)  evaporation 
C)  transpiration 
D)  weathering 
E)  none of the above

Question 17

Under natural conditions, the time necessary for soil formation is about equal to that for soil degradation.

Accepted Answer

A) True 
 B)False

Question 18

The dynamic relationship between precipitation and evaporation in any given location is the ________.

Accepted Answer

A)  capillary action 
B)  leaching 
C)  illuviation 
D)  soil-water balance 
E)  all of the above 
A)  capillary action 
B)  leaching 
C)  illuviation 
D)  soil-water balance 
E)  all of the above

Question 19

Which of the following horizons is found furthest from the surface of the soil?

Accepted Answer

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

Question 20

Mollisols are, on the whole, the most ________ of all soil orders.

Accepted Answer

A)  productive 
B)  limited 
C)  polar 
D)  equatorial 
E)  neutral 
A)  productive 
B)  limited 
C)  polar 
D)  equatorial 
E)  neutral

Seeds germinate mainly in the ________ horizon.

________ are roughly similar to Alfisols except that they are more thoroughly weathered and more completely leached of nutrient bases.

The measure of acidity/alkalinity in soils is based on the relative concentration of active hydrogen ions.

An Alfisol is most closely related to

If you lived in Texas or California and your house foundation crumbled because the soil swelled when it was wet and cracked when it was dry, chances are that the soil would be a(n)

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

Field capacity is the maximum amount of water that can be retained in the soil after gravitational water has drained away.

In cool climates, areas of poor drainage have pedogenic regimes of gleization.

After gravitational water has drained away, ________ is the water that remains in the soil and is available for use by plants.

The most weathered and leached of all soils are the ________.

The soil classification system currently in use in the United States is called the ________.

The productive wheat lands of parts of Washington, Oregon, and Idaho are underlain by soils incorporating volcanic ash and classified as ________.

Acid soils deprive plants of nutrients by the process of leaching.

Organic matter usually comprises about ________ percent of total soil volume.

The regolith is found on top of the soil.

Which of the following represents an addition to soil water?

Under natural conditions, the time necessary for soil formation is about equal to that for soil degradation.

The dynamic relationship between precipitation and evaporation in any given location is the ________.

Which of the following horizons is found furthest from the surface of the soil?

Mollisols are, on the whole, the most ________ of all soil orders.

Introduction to Earth

Portraying Earth

Introduction to the Atmosphere

Insolation and Temperature

Atmospheric Pressure and Wind

Atmospheric Moisture

Atmospheric Disturbances

Climatic and Climate Change

The Hydrosphere

Cycles and Patterns in the Biosphere

Terrestrial Flora and Fauna

Introduction to Landform Study

The Internal Processes

Preliminaries to Erosion: Weathering and Mass Wasting

Fluvial Processes

Karst and Hydrothermal Processes

The Topography of Arid Lands

Glacial Modification of Terrain

Coastal Processes and Terrain

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Exam 12: Soils

Seeds germinate mainly in the ________ horizon.

________ are roughly similar to Alfisols except that they are more thoroughly weathered and more completely leached of nutrient bases.

The measure of acidity/alkalinity in soils is based on the relative concentration of active hydrogen ions.

An Alfisol is most closely related to

If you lived in Texas or California and your house foundation crumbled because the soil swelled when it was wet and cracked when it was dry, chances are that the soil would be a(n)

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

Field capacity is the maximum amount of water that can be retained in the soil after gravitational water has drained away.

In cool climates, areas of poor drainage have pedogenic regimes of gleization.

After gravitational water has drained away, ________ is the water that remains in the soil and is available for use by plants.

The most weathered and leached of all soils are the ________.

The soil classification system currently in use in the United States is called the ________.

The productive wheat lands of parts of Washington, Oregon, and Idaho are underlain by soils incorporating volcanic ash and classified as ________.

Acid soils deprive plants of nutrients by the process of leaching.

Organic matter usually comprises about ________ percent of total soil volume.

The regolith is found on top of the soil.

Which of the following represents an addition to soil water?

Under natural conditions, the time necessary for soil formation is about equal to that for soil degradation.

The dynamic relationship between precipitation and evaporation in any given location is the ________.

Which of the following horizons is found furthest from the surface of the soil?

Mollisols are, on the whole, the most ________ of all soil orders.

Introduction to Earth

Portraying Earth

Introduction to the Atmosphere

Insolation and Temperature

Atmospheric Pressure and Wind

Atmospheric Moisture

Atmospheric Disturbances

Climatic and Climate Change

The Hydrosphere

Cycles and Patterns in the Biosphere

Terrestrial Flora and Fauna

Introduction to Landform Study

The Internal Processes

Preliminaries to Erosion: Weathering and Mass Wasting

Fluvial Processes

Karst and Hydrothermal Processes

The Topography of Arid Lands

Glacial Modification of Terrain

Coastal Processes and Terrain

Filters