Question 1

Podzolization is likely to occur

Accepted Answer

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

Question 2

In addition to designating horizons,soil scientists also identify subhorizons,such as those for human activity or the presence of organic matter.

Accepted Answer

A) True 
 B)False

Question 3

Oxisols have a________ cation-exchange and,therefore,________fertility.

Accepted Answer

A) high; low 
B) high; high 
C) low; low 
D) low; high 
A) high; low 
B) high; high 
C) low; low 
D) low; high

Question 4

A plant that is unable to extract needed water from soil has reached its

Accepted Answer

A) porosity. 
B) wilting point. 
C) field capacity. 
D) permeability. 
A) porosity. 
B) wilting point. 
C) field capacity. 
D) permeability.

Question 5

The branch of soil science that studies soil as a medium for sustaining the growth of higher plants is known as

Accepted Answer

A) geology. 
B) edaphology. 
C) pedology. 
D) geomorphology. 
A) geology. 
B) edaphology. 
C) pedology. 
D) geomorphology.

Question 6

Before the U.S.Soil Taxonomy system,soils were classified based on pedogenic regimes.

Accepted Answer

A) True 
 B)False

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

Broadleaf trees tend to increase the acidity of soils.

Accepted Answer

A) True 
 B)False

Question 9

Soils with a high concentration of hydrogen ions (H+)are considered alkaline.

Accepted Answer

A) True 
 B)False

Question 10

Thawing of Gelisols caused by warming climates could result in the release of carbon dioxide and methane to the atmosphere.

Accepted Answer

A) True 
 B)False

Question 11

Oxisols are not very fertile.

Accepted Answer

A) True 
 B)False

Question 12

Salinization is likely to occur

Accepted Answer

A) in humid climate regions. 
B) in the tropics. 
C) in areas of high potential evapotranspiration. 
D) in areas characterized by coniferous forests. 
A) in humid climate regions. 
B) in the tropics. 
C) in areas of high potential evapotranspiration. 
D) in areas characterized by coniferous forests.

Question 13

The basic soil sampling unit is

Accepted Answer

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

Question 14

Describe the NRCS Soil Taxonomy.

Accepted Answer

.The system is open to additio

Question 15

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

Accepted Answer

Soil color is an important indicator of

Question 16

Alifols,Mollisols,and Aridisols form an east to west continuum in the north-central United States and southern Canadian prairies.

Accepted Answer

A) True 
 B)False

Question 17

The organic rich horizon found at the top of the soil profile 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 18

The pedogenic process that produces an illuviated accumulation of calcium carbonate in continental climates is

Accepted Answer

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

Question 19

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 20

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

Accepted Answer

A) Biological activity 
B) Climate 
C) Topography 
D) Human activity 
E) Parent material 
A) Biological activity 
B) Climate 
C) Topography 
D) Human activity 
E) Parent material

Podzolization is likely to occur

In addition to designating horizons,soil scientists also identify subhorizons,such as those for human activity or the presence of organic matter.

Oxisols have a cation-exchange and,therefore,fertility.

A plant that is unable to extract needed water from soil has reached its

The branch of soil science that studies soil as a medium for sustaining the growth of higher plants is known as

Before the U.S.Soil Taxonomy system,soils were classified based on pedogenic regimes.

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

Broadleaf trees tend to increase the acidity of soils.

Soils with a high concentration of hydrogen ions (H+)are considered alkaline.

Thawing of Gelisols caused by warming climates could result in the release of carbon dioxide and methane to the atmosphere.

Oxisols are not very fertile.

Salinization is likely to occur

The basic soil sampling unit is

Describe the NRCS Soil Taxonomy.

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

Alifols,Mollisols,and Aridisols form an east to west continuum in the north-central United States and southern Canadian prairies.

The organic rich horizon found at the top of the soil profile is the _______horizon.

The pedogenic process that produces an illuviated accumulation of calcium carbonate in continental climates is

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

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

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

Exam 15: Soil Development and Soil Profiles

Podzolization is likely to occur

In addition to designating horizons,soil scientists also identify subhorizons,such as those for human activity or the presence of organic matter.

Oxisols have a________ cation-exchange and,therefore,________fertility.

A plant that is unable to extract needed water from soil has reached its

The branch of soil science that studies soil as a medium for sustaining the growth of higher plants is known as

Before the U.S.Soil Taxonomy system,soils were classified based on pedogenic regimes.

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

Broadleaf trees tend to increase the acidity of soils.

Soils with a high concentration of hydrogen ions (H+)are considered alkaline.

Thawing of Gelisols caused by warming climates could result in the release of carbon dioxide and methane to the atmosphere.

Oxisols are not very fertile.

Salinization is likely to occur

The basic soil sampling unit is

Describe the NRCS Soil Taxonomy.

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

Alifols,Mollisols,and Aridisols form an east to west continuum in the north-central United States and southern Canadian prairies.

The organic rich horizon found at the top of the soil profile is the _______horizon.

The pedogenic process that produces an illuviated accumulation of calcium carbonate in continental climates is

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

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

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

Oxisols have a cation-exchange and,therefore,fertility.