Question 1

The horizon identified as regolith is the _______horizon.

Accepted Answer

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

Question 2

Soil structure can be defined as which of the following?

Accepted Answer

A) prismatic 
B) crumb or granular 
C) platy 
D) blocky 
E) Crumb or granular,platy,blocky,or prismatic are all type of soil structure. 
A) prismatic 
B) crumb or granular 
C) platy 
D) blocky 
E) Crumb or granular,platy,blocky,or prismatic are all type of soil structure.

Question 3

The Soil Taxonomy is a hierarchical system consisting of six categories.

Accepted Answer

A) True 
 B)False

Question 4

A soil order is the lowest and most precise level of the Soil Taxonomy system.

Accepted Answer

A) True 
 B)False

Question 5

The O horizon is typically lacking in organic matter.

Accepted Answer

A) True 
 B)False

Question 6

Soil is composed of 70% mineral matter,5% organic matter,and varying amounts of water and air totaling 25%.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following best describes the composition of soil?

Accepted Answer

A) Soil is composed of about 45% mineral matter,5% organic matter,and 50% pore space containing air and water. 
B) Soil consists of approximately 45% organic matter,50% mineral matter,and 5% water and/or air. 
C) Soil is primarily mineral matter (approximately 72%),but also consists of organic matter (10%),and water (18%). 
D) Soil includes pebbles,gravel,cobbles,and a varying combination of sands,silts,and clays. 
A) Soil is composed of about 45% mineral matter,5% organic matter,and 50% pore space containing air and water. 
B) Soil consists of approximately 45% organic matter,50% mineral matter,and 5% water and/or air. 
C) Soil is primarily mineral matter (approximately 72%),but also consists of organic matter (10%),and water (18%). 
D) Soil includes pebbles,gravel,cobbles,and a varying combination of sands,silts,and clays.

Question 8

List and briefly describe the various chemical properties used to differentiate soils.

Accepted Answer

Soil colloids are the tiny particles of

Question 9

What is the predominant soil order in the area in which you live? Describe the activities that occur on these soils that reflect the characteristics thereof.

Accepted Answer

Answers will vary depending on where stu

Question 10

Which of the following best describes the role of biological activity in soil development?

Accepted Answer

A) Plant roots provide channels for air and water movement in soils. 
B) Broadleaf trees tend to increase the alkalinity of soil,whereas needleleaf trees increase the acidity. 
C) Earthworms increase soil porosity and contribute to soil movement and organic content. 
D) All organisms living in,on,and over the soil,influence soil development and characteristics: they can influence the pH,the organic matter,chemical content,and biological content of soils. 
A) Plant roots provide channels for air and water movement in soils. 
B) Broadleaf trees tend to increase the alkalinity of soil,whereas needleleaf trees increase the acidity. 
C) Earthworms increase soil porosity and contribute to soil movement and organic content. 
D) All organisms living in,on,and over the soil,influence soil development and characteristics: they can influence the pH,the organic matter,chemical content,and biological content of soils.

Question 11

Practices such as no-till agriculture may help mitigate against soil erosion.

Accepted Answer

A) True 
 B)False

Question 12

The multiyear period of severe wind erosion and soil loss occurred in the Great Plains during the 1930s is known as

Accepted Answer

A) desertification. 
B) the Grapes of Wrath. 
C) the Dust Bowl. 
D) the Black Blizzard. 
A) desertification. 
B) the Grapes of Wrath. 
C) the Dust Bowl. 
D) the Black Blizzard.

Question 13

In terms of pedogenic regimes,the process that results in an accumulation of humus overlaying a thick,water saturated layer of clay in cold,wet climates with poor drainage conditions is

Accepted Answer

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

Question 14

Between 1982 and 2007,soil erosion on U.S.cropland

Accepted Answer

A) increased by 25% 
B) decreased by 43%. 
C) decreased by 21%. 
D) increased by 13%. 
A) increased by 25% 
B) decreased by 43%. 
C) decreased by 21%. 
D) increased by 13%.

Question 15

Spodosols are solely associated with the northern coniferous forest and are never found within mixed or deciduous forests.

Accepted Answer

A) True 
 B)False

Question 16

In the Northern Hemisphere,north facing slopes are generally colder,have slower snowmelt,lower evapotranspiration rates,and more moisture for plants than south facing slopes do.

Accepted Answer

A) True 
 B)False

Question 17

Both Gelisols and Histosols have high organic matter content.

Accepted Answer

A) True 
 B)False

Question 18

A dark colored soil always indicates high organic content.

Accepted Answer

A) True 
 B)False

Question 19

Entisols are the least developed soils in the world.

Accepted Answer

A) True 
 B)False

Question 20

The pedogenic process that concentrates salts in soils in climates with high evapotranspiration is

Accepted Answer

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

The horizon identified as regolith is the _______horizon.

Soil structure can be defined as which of the following?

The Soil Taxonomy is a hierarchical system consisting of six categories.

A soil order is the lowest and most precise level of the Soil Taxonomy system.

The O horizon is typically lacking in organic matter.

Soil is composed of 70% mineral matter,5% organic matter,and varying amounts of water and air totaling 25%.

Which of the following best describes the composition of soil?

List and briefly describe the various chemical properties used to differentiate soils.

What is the predominant soil order in the area in which you live? Describe the activities that occur on these soils that reflect the characteristics thereof.

Which of the following best describes the role of biological activity in soil development?

Practices such as no-till agriculture may help mitigate against soil erosion.

The multiyear period of severe wind erosion and soil loss occurred in the Great Plains during the 1930s is known as

In terms of pedogenic regimes,the process that results in an accumulation of humus overlaying a thick,water saturated layer of clay in cold,wet climates with poor drainage conditions is

Between 1982 and 2007,soil erosion on U.S.cropland

Spodosols are solely associated with the northern coniferous forest and are never found within mixed or deciduous forests.

In the Northern Hemisphere,north facing slopes are generally colder,have slower snowmelt,lower evapotranspiration rates,and more moisture for plants than south facing slopes do.

Both Gelisols and Histosols have high organic matter content.

A dark colored soil always indicates high organic content.

Entisols are the least developed soils in the world.

The pedogenic process that concentrates salts in soils in climates with high evapotranspiration is

The Science of Geography

The Solar System,sun,and Earth

Energy Balance Essentials

Wind Essentials

Waterʹs Unique Properties

Water on Earth

Review of Earthʹs Climate System

Population Growth and Fossil Fuel Burning the Setting for Climate Change

The Pace of Change

Earthʹs Surface Relief Features

Landmass Denudation

Drainage Basins and Drainage Patterns

Global Oceans and Seas

Snow Into Ice--The Basis of Glaciers

Energy Flows and Nutrient Cycles

Biogeographic Divisions

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Exam 15: Soil Development and Soil Profiles

The horizon identified as regolith is the _______horizon.

Soil structure can be defined as which of the following?

The Soil Taxonomy is a hierarchical system consisting of six categories.

A soil order is the lowest and most precise level of the Soil Taxonomy system.

The O horizon is typically lacking in organic matter.

Soil is composed of 70% mineral matter,5% organic matter,and varying amounts of water and air totaling 25%.

Which of the following best describes the composition of soil?

List and briefly describe the various chemical properties used to differentiate soils.

What is the predominant soil order in the area in which you live? Describe the activities that occur on these soils that reflect the characteristics thereof.

Which of the following best describes the role of biological activity in soil development?

Practices such as no-till agriculture may help mitigate against soil erosion.

The multiyear period of severe wind erosion and soil loss occurred in the Great Plains during the 1930s is known as

In terms of pedogenic regimes,the process that results in an accumulation of humus overlaying a thick,water saturated layer of clay in cold,wet climates with poor drainage conditions is

Between 1982 and 2007,soil erosion on U.S.cropland

Spodosols are solely associated with the northern coniferous forest and are never found within mixed or deciduous forests.

In the Northern Hemisphere,north facing slopes are generally colder,have slower snowmelt,lower evapotranspiration rates,and more moisture for plants than south facing slopes do.

Both Gelisols and Histosols have high organic matter content.

A dark colored soil always indicates high organic content.

Entisols are the least developed soils in the world.

The pedogenic process that concentrates salts in soils in climates with high evapotranspiration is

The Science of Geography

The Solar System,sun,and Earth

Energy Balance Essentials

Wind Essentials

Waterʹs Unique Properties

Water on Earth

Review of Earthʹs Climate System

Population Growth and Fossil Fuel Burning the Setting for Climate Change

The Pace of Change

Earthʹs Surface Relief Features

Landmass Denudation

Drainage Basins and Drainage Patterns

Global Oceans and Seas

Snow Into Ice--The Basis of Glaciers

Energy Flows and Nutrient Cycles

Biogeographic Divisions

Filters