Question 1

Carbon dioxide concentrations in soil are ________ than in the atmosphere because ________.

Accepted Answer

A)  lower; transpiration 
B)  lower; plant photosynthesis 
C)  higher; ongoing respiration in the ground 
D)  higher; decay of dead plants and animals 
A)  lower; transpiration 
B)  lower; plant photosynthesis 
C)  higher; ongoing respiration in the ground 
D)  higher; decay of dead plants and animals C

Question 2

The southeast United States is dominated by which soil order?

Accepted Answer

A)  Ultisols 
B)  Alfisols 
C)  Oxisols 
D)  Mollisols 
A)  Ultisols 
B)  Alfisols 
C)  Oxisols 
D)  Mollisols A

Question 3

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

Accepted Answer

A)  northern Europe 
B)  the selva in Brazil 
C)  the U.S. southwest 
D)  marine west coast climates 
A)  northern Europe 
B)  the selva in Brazil 
C)  the U.S. southwest 
D)  marine west coast climates C

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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 6

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

Accepted Answer

A) True 
 B)False

Question 7

Which of the following best describes soil?

Accepted Answer

A)  Soil is composed of solely mineral fragments less than 2 mm in size. 
B)  Soil lacks biological material. 
C)  Soil is a renewable resource. 
D)  Soil is a dynamic natural material composed of water, air, mineral fragments, and organic matter. 
A)  Soil is composed of solely mineral fragments less than 2 mm in size. 
B)  Soil lacks biological material. 
C)  Soil is a renewable resource. 
D)  Soil is a dynamic natural material composed of water, air, mineral fragments, and organic matter.

Question 8

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 9

Podzolization is likely to occur

Accepted Answer

A)  in the tropics. 
B)  in areas with broadleaf forests. 
C)  in humid climate regions. 
D)  in areas characterized coniferous forests. 
A)  in the tropics. 
B)  in areas with broadleaf forests. 
C)  in humid climate regions. 
D)  in areas characterized coniferous forests.

Question 10

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 group. 
A)  soil family. 
B)  soil order. 
C)  soil series. 
D)  soil group.

Question 11

The horizon in which water moves fine particles downward in a process called eluviation 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

Soil texture is probably the most permanent property of a soil.

Accepted Answer

A) True 
 B)False

Question 13

The basic sampling unit, in soil surveys representing all the characteristics and variability used for classification, is

Accepted Answer

A)  soil profile. 
B)  pedon. 
C)  soil horizon. 
D)  polypedon. 
A)  soil profile. 
B)  pedon. 
C)  soil horizon. 
D)  polypedon.

Question 14

Entisols are the least developed soils in the world.

Accepted Answer

A) True 
 B)False

Question 15

Rounded peds have more pore space between them and greater permeability than do other ped shapes.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is not a physical property used to distinguish soils?

Accepted Answer

A)  color 
B)  texture 
C)  porosity 
D)  moisture 
E)  temperature 
A)  color 
B)  texture 
C)  porosity 
D)  moisture 
E)  temperature

Question 17

Soils are the foundation of basic ecosystem function and are a critical resource for agriculture.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is correct regarding the soil physical property of soil?

Accepted Answer

A)  Dark soils always indicate high organic content. 
B)  Despite the imporantance of color in describing soils, there is no standard methods for standardized descriptions. 
C)  Soil color is used solely to determine the moisture content of soil-darker soils have a higher moisture content, whereas lighter soils have less water content. 
D)  Color reflects composition and chemical makeup of a soil. 
A)  Dark soils always indicate high organic content. 
B)  Despite the imporantance of color in describing soils, there is no standard methods for standardized descriptions. 
C)  Soil color is used solely to determine the moisture content of soil-darker soils have a higher moisture content, whereas lighter soils have less water content. 
D)  Color reflects composition and chemical makeup of a soil.

Question 19

This is the world's largest soil order, occurring on 19% of the Earth's land surface in the world's dry regions.

Accepted Answer

A)  Oxisols 
B)  Mollisols 
C)  Aridisols 
D)  Andisols 
A)  Oxisols 
B)  Mollisols 
C)  Aridisols 
D)  Andisols

Question 20

Which of the following soil horizon designations is i the correct sequence from the surface to the bedrock?

Accepted Answer

A)  O, E, C, B, A 
B)  A, B, C, O, R 
C)  S, O, I, L 
D)  O, A, E, B, C 
A)  O, E, C, B, A 
B)  A, B, C, O, R 
C)  S, O, I, L 
D)  O, A, E, B, C

Carbon dioxide concentrations in soil are than in the atmosphere because .

The southeast United States is dominated by which soil order?

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

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

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.

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

Which of the following best describes soil?

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

Podzolization is likely to occur

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

The horizon in which water moves fine particles downward in a process called eluviation is the ________ horizon.

Soil texture is probably the most permanent property of a soil.

The basic sampling unit, in soil surveys representing all the characteristics and variability used for classification, is

Entisols are the least developed soils in the world.

Rounded peds have more pore space between them and greater permeability than do other ped shapes.

Which of the following is not a physical property used to distinguish soils?

Soils are the foundation of basic ecosystem function and are a critical resource for agriculture.

Which of the following is correct regarding the soil physical property of soil?

This is the world's largest soil order, occurring on 19% of the Earth's land surface in the world's dry regions.

Which of the following soil horizon designations is i the correct sequence from the surface to the bedrock?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

The Oceans, Coastal Processes, and Wind Processes

Glacial and Periglacial Processes and Landforms

Ecosystem Essentials

Terrestrial Biomes

Filters

Exam 18: The Geography of Soils

Carbon dioxide concentrations in soil are ________ than in the atmosphere because ________.

The southeast United States is dominated by which soil order?

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

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

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.

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

Which of the following best describes soil?

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

Podzolization is likely to occur

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

The horizon in which water moves fine particles downward in a process called eluviation is the ________ horizon.

Soil texture is probably the most permanent property of a soil.

The basic sampling unit, in soil surveys representing all the characteristics and variability used for classification, is

Entisols are the least developed soils in the world.

Rounded peds have more pore space between them and greater permeability than do other ped shapes.

Which of the following is not a physical property used to distinguish soils?

Soils are the foundation of basic ecosystem function and are a critical resource for agriculture.

Which of the following is correct regarding the soil physical property of soil?

This is the world's largest soil order, occurring on 19% of the Earth's land surface in the world's dry regions.

Which of the following soil horizon designations is i the correct sequence from the surface to the bedrock?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

The Oceans, Coastal Processes, and Wind Processes

Glacial and Periglacial Processes and Landforms

Ecosystem Essentials

Terrestrial Biomes

Filters

Carbon dioxide concentrations in soil are than in the atmosphere because .