Question 1

Earthworms are so common in soil that a half a hectare (~1 acre) may contain one million of them.

Accepted Answer

A) True 
 B)False

Question 2

A dark color is a sure indication that the soil is fertile.

Accepted Answer

A) True 
 B)False

Question 3

In terms of a typical soil-water balance, which season is associated with a soil water surplus?

Accepted Answer

A)  summer 
B)  spring 
C)  the one with the greatest evapotranspiration 
D)  the one which is warmest 
E)  none of the above 
A)  summer 
B)  spring 
C)  the one with the greatest evapotranspiration 
D)  the one which is warmest 
E)  none of the above

Question 4

Several soil horizons together make up a ________.

Accepted Answer

A)  soil profile 
B)  ped 
C)  soil series 
D)  soil order 
E)  hardpan 
A)  soil profile 
B)  ped 
C)  soil series 
D)  soil order 
E)  hardpan

Question 5

The true soil layer is known as ________.

Accepted Answer

A)  loam 
B)  an Oxisol 
C)  the solum 
D)  the interstices 
E)  all of the above 
A)  loam 
B)  an Oxisol 
C)  the solum 
D)  the interstices 
E)  all of the above

Question 6

The main value of the extensive terminology of the Soil Taxonomy is its ________.

Accepted Answer

A)  lack of subdivisions 
B)  basis in the genesis of soils 
C)  acceptance in every country in the world 
D)  basis in observable characteristics 
E)  status as being the first soil classification 
A)  lack of subdivisions 
B)  basis in the genesis of soils 
C)  acceptance in every country in the world 
D)  basis in observable characteristics 
E)  status as being the first soil classification

Question 7

Earthworms

Accepted Answer

A)  are unable to live in soil with pH values of less than 6. 
B)  vertically rearrange soil material. 
C)  usually guarantee the soil will be highly productive. 
D)  are at their most numerous in temperate climates. 
E)  are described by all of the above. 
A)  are unable to live in soil with pH values of less than 6. 
B)  vertically rearrange soil material. 
C)  usually guarantee the soil will be highly productive. 
D)  are at their most numerous in temperate climates. 
E)  are described by all of the above.

Question 8

A soil with a high cation exchange would likely be

Accepted Answer

A)  dark in color. 
B)  very sandy. 
C)  fertile. 
D)  impermeable. 
E)  thin. 
A)  dark in color. 
B)  very sandy. 
C)  fertile. 
D)  impermeable. 
E)  thin.

Question 9

The soil-forming factor which is said to make soil more than "just dirt" is the ________ factor.

Accepted Answer

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

Question 10

The flat platelets which are clay particles are ________.

Accepted Answer

A)  the largest particles in the soil 
B)  chemically inert 
C)  called cations 
D)  negatively charged 
E)  relatively rare compared to other soil materials 
A)  the largest particles in the soil 
B)  chemically inert 
C)  called cations 
D)  negatively charged 
E)  relatively rare compared to other soil materials

Question 11

Which is a main soil-forming factor?

Accepted Answer

A)  climatic 
B)  geologic 
C)  topographic 
D)  chronological 
E)  all of the above 
A)  climatic 
B)  geologic 
C)  topographic 
D)  chronological 
E)  all of the above

Question 12

Humus has a consistency not unlike that of ________.

Accepted Answer

A)  putty 
B)  sponges 
C)  gelatin 
D)  rock 
E)  roast beef 
A)  putty 
B)  sponges 
C)  gelatin 
D)  rock 
E)  roast beef

Question 13

In the soil, the C horizon is unconsolidated parent material or regolith.

Accepted Answer

A) True 
 B)False

Question 14

In the process of illuviation, water picks up fine soil particles and transports them downward.

Accepted Answer

A) True 
 B)False

Question 15

Which are the least well developed of all soil orders?

Accepted Answer

A)  Alfisols 
B)  Mollisols 
C)  Oxisols 
D)  Entisols 
E)  Vertisols 
A)  Alfisols 
B)  Mollisols 
C)  Oxisols 
D)  Entisols 
E)  Vertisols

Question 16

The minerals that form cations are known as ________.

Accepted Answer

A)  anions 
B)  electrons 
C)  bases 
D)  clays 
E)  loams 
A)  anions 
B)  electrons 
C)  bases 
D)  clays 
E)  loams

Question 17

The smallest-sized pieces of a soil are ________.

Accepted Answer

A)  sands 
B)  gravels 
C)  clays 
D)  silts 
E)  cobbles 
A)  sands 
B)  gravels 
C)  clays 
D)  silts 
E)  cobbles

Question 18

________ is a soil texture in which none of the three main soil separates dominates the other two.

Accepted Answer

A)  Adobe 
B)  Humus 
C)  Loess 
D)  Loam 
E)  Podzol 
A)  Adobe 
B)  Humus 
C)  Loess 
D)  Loam 
E)  Podzol

Question 19

The pedogenic regime typified by silica removal and iron-aluminum concentration near the surface is ________.

Accepted Answer

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

Question 20

Scientists recognize 175 gradations of soil color.

Accepted Answer

A) True 
 B)False

Earthworms are so common in soil that a half a hectare (~1 acre) may contain one million of them.

A dark color is a sure indication that the soil is fertile.

In terms of a typical soil-water balance, which season is associated with a soil water surplus?

Several soil horizons together make up a ________.

The true soil layer is known as ________.

The main value of the extensive terminology of the Soil Taxonomy is its ________.

Earthworms

A soil with a high cation exchange would likely be

The soil-forming factor which is said to make soil more than "just dirt" is the ________ factor.

The flat platelets which are clay particles are ________.

Which is a main soil-forming factor?

Humus has a consistency not unlike that of ________.

In the soil, the C horizon is unconsolidated parent material or regolith.

In the process of illuviation, water picks up fine soil particles and transports them downward.

Which are the least well developed of all soil orders?

The minerals that form cations are known as ________.

The smallest-sized pieces of a soil are ________.

________ is a soil texture in which none of the three main soil separates dominates the other two.

The pedogenic regime typified by silica removal and iron-aluminum concentration near the surface is ________.

Scientists recognize 175 gradations of soil color.

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

Earthworms are so common in soil that a half a hectare (~1 acre) may contain one million of them.

A dark color is a sure indication that the soil is fertile.

In terms of a typical soil-water balance, which season is associated with a soil water surplus?

Several soil horizons together make up a ________.

The true soil layer is known as ________.

The main value of the extensive terminology of the Soil Taxonomy is its ________.

Earthworms

A soil with a high cation exchange would likely be

The soil-forming factor which is said to make soil more than "just dirt" is the ________ factor.

The flat platelets which are clay particles are ________.

Which is a main soil-forming factor?

Humus has a consistency not unlike that of ________.

In the soil, the C horizon is unconsolidated parent material or regolith.

In the process of illuviation, water picks up fine soil particles and transports them downward.

Which are the least well developed of all soil orders?

The minerals that form cations are known as ________.

The smallest-sized pieces of a soil are ________.

________ is a soil texture in which none of the three main soil separates dominates the other two.

The pedogenic regime typified by silica removal and iron-aluminum concentration near the surface is ________.

Scientists recognize 175 gradations of soil color.

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