Question 1

Many essential plant nutrients occur in soil solutions as cations.

Accepted Answer

A) True 
 B)False

Question 2

Theorize the difference in soil development in adjoining soils developed on a forested, slope area versus a grassed flat area.

Accepted Answer

The difference in soil development betwe

Question 3

Explain at least three ways in which the presence of clay is vital to the properties of the soil in which it is contained.

Accepted Answer

The answer of Explain at least three ways in which...

Question 4

The pedogenic regime associated with high annual precipitation and temperature is ________.

Accepted Answer

A)  gleization 
B)  laterization 
C)  calcification 
D)  salinization 
E)  none of the above 
A)  gleization 
B)  laterization 
C)  calcification 
D)  salinization 
E)  none of the above

Question 5

Soils which have formed from salinization are associated with the need for irrigation.

Accepted Answer

A) True 
 B)False

Question 6

Ultisols generally lack ________.

Accepted Answer

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

Question 7

Earthworms

Accepted Answer

A)  are widely distributed over the Earth. 
B)  excrete casts. 
C)  are known by the Latin name Bubulcus ibis. 
D)  usually deplete soil fertility. 
E)  are correctly described by all of the above. 
A)  are widely distributed over the Earth. 
B)  excrete casts. 
C)  are known by the Latin name Bubulcus ibis. 
D)  usually deplete soil fertility. 
E)  are correctly described by all of the above.

Question 8

In the United States, the soil order occupying the most area is the ________.

Accepted Answer

The answer of In the United States, the soil order...

Question 9

Reddish and yellowish soil colors indicate ________ stains on the outside of soil particles.

Accepted Answer

The answer of Reddish and yellowish soil colors indicate ________...

Question 10

A soil that has experienced major environmental shifts in climate and vegetation will retain evidence of past environments. Such soils are known as

Accepted Answer

A)  polygenetic. 
B)  infertile. 
C)  clayey. 
D)  acidic. 
E)  lateritic. 
A)  polygenetic. 
B)  infertile. 
C)  clayey. 
D)  acidic. 
E)  lateritic.

Question 11

A Histosol would most likely be found in

Accepted Answer

A)  a tropical rainforest environment. 
B)  a tropical desert environment. 
C)  a region in which erosion exceeds soil formation. 
D)  a region in which humans have disturbed the soils. 
E)  places which were glaciated during the Pleistocene. 
A)  a tropical rainforest environment. 
B)  a tropical desert environment. 
C)  a region in which erosion exceeds soil formation. 
D)  a region in which humans have disturbed the soils. 
E)  places which were glaciated during the Pleistocene.

Question 12

Solum is another term for the R horizon of soil.

Accepted Answer

A) True 
 B)False

Question 13

The ________ soil order tends to form the deepest soils.

Accepted Answer

The answer of The ________ soil order tends to form...

Question 14

The porosity in the soil is measured by dividing the volume of the ________ by the total volume of the soil.

Accepted Answer

voids or p

Question 15

Water and air move through the upper layer of the soil through passages called interstices.

Accepted Answer

A) True 
 B)False

Question 16

Among layers of the soil, the one with the most organic material is ________.

Accepted Answer

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

Question 17

Globally, the influence of this soil-forming factor fades with time.

Accepted Answer

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

Question 18

Eluvial materials are deposited in the soil's ________ horizon.

Accepted Answer

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

Question 19

Soil microorganisms must be destroyed in order to improve agricultural productivity.

Accepted Answer

A) True 
 B)False

Question 20

________ is least available to plants because it is held in chemical combination with the minerals in the soil.

Accepted Answer

A)  Free water 
B)  Capillary water 
C)  Combined water 
D)  Hygroscopic water 
E)  Gravitational water 
A)  Free water 
B)  Capillary water 
C)  Combined water 
D)  Hygroscopic water 
E)  Gravitational water

Many essential plant nutrients occur in soil solutions as cations.

Theorize the difference in soil development in adjoining soils developed on a forested, slope area versus a grassed flat area.

Explain at least three ways in which the presence of clay is vital to the properties of the soil in which it is contained.

The pedogenic regime associated with high annual precipitation and temperature is ________.

Soils which have formed from salinization are associated with the need for irrigation.

Ultisols generally lack ________.

Earthworms

In the United States, the soil order occupying the most area is the ________.

Reddish and yellowish soil colors indicate ________ stains on the outside of soil particles.

A soil that has experienced major environmental shifts in climate and vegetation will retain evidence of past environments. Such soils are known as

A Histosol would most likely be found in

Solum is another term for the R horizon of soil.

The ________ soil order tends to form the deepest soils.

The porosity in the soil is measured by dividing the volume of the ________ by the total volume of the soil.

Water and air move through the upper layer of the soil through passages called interstices.

Among layers of the soil, the one with the most organic material is ________.

Globally, the influence of this soil-forming factor fades with time.

Eluvial materials are deposited in the soil's ________ horizon.

Soil microorganisms must be destroyed in order to improve agricultural productivity.

________ is least available to plants because it is held in chemical combination with the minerals in the soil.

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

Exam 12: Soils

Many essential plant nutrients occur in soil solutions as cations.

Theorize the difference in soil development in adjoining soils developed on a forested, slope area versus a grassed flat area.

Explain at least three ways in which the presence of clay is vital to the properties of the soil in which it is contained.

The pedogenic regime associated with high annual precipitation and temperature is ________.

Soils which have formed from salinization are associated with the need for irrigation.

Ultisols generally lack ________.

Earthworms

In the United States, the soil order occupying the most area is the ________.

Reddish and yellowish soil colors indicate ________ stains on the outside of soil particles.

A soil that has experienced major environmental shifts in climate and vegetation will retain evidence of past environments. Such soils are known as

A Histosol would most likely be found in

Solum is another term for the R horizon of soil.

The ________ soil order tends to form the deepest soils.

The porosity in the soil is measured by dividing the volume of the ________ by the total volume of the soil.

Water and air move through the upper layer of the soil through passages called interstices.

Among layers of the soil, the one with the most organic material is ________.

Globally, the influence of this soil-forming factor fades with time.

Eluvial materials are deposited in the soil's ________ horizon.

Soil microorganisms must be destroyed in order to improve agricultural productivity.

________ is least available to plants because it is held in chemical combination with the minerals in the soil.

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