Question 1

____are hydric soils,forming in beds of former lakes and small,poorly drained depressions.

Accepted Answer

A) Histosols 
B) Andisols 
C) Vertisols 
D) Aridisols 
E) Entisols 
A) Histosols 
B) Andisols 
C) Vertisols 
D) Aridisols 
E) Entisols

Question 2

The horizon in which leached materials from other horizons is accumulated 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 3

What are the six main horizons found in soils? Briefly describe each.

Accepted Answer

O,A,E,B,C,and R.(Note,the text lists fou

Question 4

These hydric soils are often found in bogs and often have anaerobic conditions during the growing season.

Accepted Answer

A) Histosols 
B) Andisols 
C) Vertisols 
D) Aridisols 
E) Entisols 
A) Histosols 
B) Andisols 
C) Vertisols 
D) Aridisols 
E) Entisols

Question 5

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

Question 6

In which of the following areas would one likely find Mollisols?

Accepted Answer

A) Sub-Saharan Africa 
B) the U.S.Great Plains 
C) central Africa 
D) southeast United States 
E) coniferous forests in northern latitudes 
A) Sub-Saharan Africa 
B) the U.S.Great Plains 
C) central Africa 
D) southeast United States 
E) coniferous forests in northern latitudes

Question 7

Which of the following is not one of the five primary soil-forming factors?

Accepted Answer

A) topography 
B) climate 
C) human activity 
D) biological activity 
E) parent material 
A) topography 
B) climate 
C) human activity 
D) biological activity 
E) parent material

Question 8

Soils will develop at faster rates in which of the following environments?

Accepted Answer

A) hot and dry 
B) cold and dry 
C) warm and humid 
D) cool and dry 
E) cool and moist 
A) hot and dry 
B) cold and dry 
C) warm and humid 
D) cool and dry 
E) cool and moist

Question 9

Which soil order is the most spatially widespread,found from near the equator to high latitudes?

Accepted Answer

A) Vertisols 
B) Alfisols 
C) Entisols 
D) Gelisols 
E) Ultisols 
A) Vertisols 
B) Alfisols 
C) Entisols 
D) Gelisols 
E) Ultisols

Question 10

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

Accepted Answer

Soil colloids are the tiny particles of

Question 11

The horizon that is commonly called topsoil 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 12

What are some of the biggest challenges related to soil conservation and management in the coming decades?

Accepted Answer

Answers will vary.However,they may inclu

Question 13

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

Accepted Answer

A) Since soil is primarily inorganic matter,the role that organisms play in soil formation and development is obvious only on the surface and top layer of soil. 
B) While burrowing animals churn soil,the role of other organisms in soil formation and development is mostly muted. 
C) The largest contribution organisms make to soil development is through fertilization via their waste products. 
D) Given the amount of time it takes soil to form,the contribution organisms make to soil development is through decomposition,alone,adding needed organic matter to soils. 
E) All organisms living in,on,and over the soil may influence the development and characteristics of soil. 
A) Since soil is primarily inorganic matter,the role that organisms play in soil formation and development is obvious only on the surface and top layer of soil. 
B) While burrowing animals churn soil,the role of other organisms in soil formation and development is mostly muted. 
C) The largest contribution organisms make to soil development is through fertilization via their waste products. 
D) Given the amount of time it takes soil to form,the contribution organisms make to soil development is through decomposition,alone,adding needed organic matter to soils. 
E) All organisms living in,on,and over the soil may influence the development and characteristics of soil.

Question 14

_____are among the Earth's most agriculturally significant soils.

Accepted Answer

A) Aridisols 
B) Inceptisols 
C) Mollisols 
D) Entisols 
E) Oxisols 
A) Aridisols 
B) Inceptisols 
C) Mollisols 
D) Entisols 
E) Oxisols

Question 15

The lowest and most precise level of the U.S.soil classification system is

Accepted Answer

A) soil family. 
B) soil order. 
C) soil series. 
D) soil great group. 
E) soil subgroups. 
A) soil family. 
B) soil order. 
C) soil series. 
D) soil great group. 
E) soil subgroups.

Question 16

In terms of pedogenic regimes,the process that produces an illuviated accumulation of calcium carbonate in continental climates is

Accepted Answer

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

Question 17

Gleization is likely to occur in

Accepted Answer

A) the tropics. 
B) areas with broadleaf forests. 
C) humid climate regions. 
D) areas characterized coniferous forests. 
E) cold,wet climates. 
A) the tropics. 
B) areas with broadleaf forests. 
C) humid climate regions. 
D) areas characterized coniferous forests. 
E) cold,wet climates.

Question 18

Which of the following best describes the composition of healthy soil?

Accepted Answer

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

Question 19

Relatively high precipitation in the regions in which these soils are found cause greater mineral alterations and more alluvial leaching than in other soils.

Accepted Answer

A) Oxisols 
B) Andisols 
C) Gelisols 
D) Ultisols 
E) Entisols 
A) Oxisols 
B) Andisols 
C) Gelisols 
D) Ultisols 
E) Entisols

Question 20

____is the ability of soil to sustain plants.

Accepted Answer

A) Porosity 
B) Texture 
C) Soil fertility 
D) Cation exchange 
E) Structure 
A) Porosity 
B) Texture 
C) Soil fertility 
D) Cation exchange 
E) Structure

____are hydric soils,forming in beds of former lakes and small,poorly drained depressions.

The horizon in which leached materials from other horizons is accumulated is the ____horizon.

What are the six main horizons found in soils? Briefly describe each.

These hydric soils are often found in bogs and often have anaerobic conditions during the growing season.

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

In which of the following areas would one likely find Mollisols?

Which of the following is not one of the five primary soil-forming factors?

Soils will develop at faster rates in which of the following environments?

Which soil order is the most spatially widespread,found from near the equator to high latitudes?

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

The horizon that is commonly called topsoil is the ____horizon.

What are some of the biggest challenges related to soil conservation and management in the coming decades?

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

_____are among the Earth's most agriculturally significant soils.

The lowest and most precise level of the U.S.soil classification system is

In terms of pedogenic regimes,the process that produces an illuviated accumulation of calcium carbonate in continental climates is

Gleization is likely to occur in

Which of the following best describes the composition of healthy soil?

Relatively high precipitation in the regions in which these soils are found cause greater mineral alterations and more alluvial leaching than in other soils.

____is the ability of soil to sustain plants.

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth’s Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Earth’s Climatic Regions

Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems

Aeolian Processes and Arid Landscapes

Oceans and Coastal Systems

Glacial Landscapes and the Cryosphere

Ecosystem Essentials

Terrestrial Biomes

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Exam 18: The Geography of Soils

____are hydric soils,forming in beds of former lakes and small,poorly drained depressions.

The horizon in which leached materials from other horizons is accumulated is the ____horizon.

What are the six main horizons found in soils? Briefly describe each.

These hydric soils are often found in bogs and often have anaerobic conditions during the growing season.

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

In which of the following areas would one likely find Mollisols?

Which of the following is not one of the five primary soil-forming factors?

Soils will develop at faster rates in which of the following environments?

Which soil order is the most spatially widespread,found from near the equator to high latitudes?

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

The horizon that is commonly called topsoil is the ____horizon.

What are some of the biggest challenges related to soil conservation and management in the coming decades?

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

_____are among the Earth's most agriculturally significant soils.

The lowest and most precise level of the U.S.soil classification system is

In terms of pedogenic regimes,the process that produces an illuviated accumulation of calcium carbonate in continental climates is

Gleization is likely to occur in

Which of the following best describes the composition of healthy soil?

Relatively high precipitation in the regions in which these soils are found cause greater mineral alterations and more alluvial leaching than in other soils.

____is the ability of soil to sustain plants.

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth’s Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Earth’s Climatic Regions

Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems

Aeolian Processes and Arid Landscapes

Oceans and Coastal Systems

Glacial Landscapes and the Cryosphere

Ecosystem Essentials

Terrestrial Biomes

Filters