Question 1

An argillic horizon is a diagnostic horizon characterized by the subsurface accumulation of silicate clays.

Accepted Answer

A) True 
 B)False

Question 2

The two most significant characteristics of the classification system used in the United States are a unique system of terminology and focus on measurable soil properties as a primary basis for the classification.

Accepted Answer

A) True 
 B)False

Question 3

The broadest category of classification in Soil Taxonomy specifies 12 soil orders, 11 of which are for mineral soils.

Accepted Answer

A) True 
 B)False

Question 4

Soils in this order are commonly sandy in texture, quite acidic and develop primarily under coniferous trees in cool to cold climates

Accepted Answer

A) Mollisols 
B) Andisols 
C) Spodosols 
D) Alfisols 
E) Ultisols 
A) Mollisols 
B) Andisols 
C) Spodosols 
D) Alfisols 
E) Ultisols

Question 5

Soils in which of the following soil suborders would most likely have a prominent E horizon under the A horizon?

Accepted Answer

A) Ustox 
B) Udalfs 
C) Orthents 
D) Aquepts 
E) Udolls 
A) Ustox 
B) Udalfs 
C) Orthents 
D) Aquepts 
E) Udolls

Question 6

Because soil development is just beginning in Entisols, these soils are generally less variable in properties than are those in the Andisol or Ultisol orders.

Accepted Answer

A) True 
 B)False

Question 7

Which of the categories in the Soil Taxonomy system indicates properties that have implications for root growth as well as for the construction of building foundations?

Accepted Answer

A) suborder 
B) family 
C) series 
D) great group 
E) subgroup 
A) suborder 
B) family 
C) series 
D) great group 
E) subgroup

An argillic horizon is a diagnostic horizon characterized by the subsurface accumulation of silicate clays.

The two most significant characteristics of the classification system used in the United States are a unique system of terminology and focus on measurable soil properties as a primary basis for the classification.

The broadest category of classification in Soil Taxonomy specifies 12 soil orders, 11 of which are for mineral soils.

Soils in this order are commonly sandy in texture, quite acidic and develop primarily under coniferous trees in cool to cold climates

Soils in which of the following soil suborders would most likely have a prominent E horizon under the A horizon?

Because soil development is just beginning in Entisols, these soils are generally less variable in properties than are those in the Andisol or Ultisol orders.

Which of the categories in the Soil Taxonomy system indicates properties that have implications for root growth as well as for the construction of building foundations?

The Soils Around US

Formation of Soils From Parent Materials

Soil Architecture and Physical Properties

Soil Water: Characteristics and Behavior

Soil and the Hydrologic Cycle

Soil Aeration and Temperature

Soil Colloids: Seat of Soil Chemical and Physical Activity

Soil Acidity

Soils of Dry Regions: Alkalinity, Salinity, and Sodicity

Organisms and Ecology of the Soil

Soil Organic Matter

Nitrogen and Sulfur Economy of Soils

Soil Phosphorus and Potassium

Micronutrients and Other Trace Elements

Practical Nutrient Management

Soil Erosion and Its Control

Soils and Chemical Pollution

Geographic Soils Information

Prospects for Global Soil Quality

Filters

Exam 3: Soil Classification

An argillic horizon is a diagnostic horizon characterized by the subsurface accumulation of silicate clays.

The two most significant characteristics of the classification system used in the United States are a unique system of terminology and focus on measurable soil properties as a primary basis for the classification.

The broadest category of classification in Soil Taxonomy specifies 12 soil orders, 11 of which are for mineral soils.

Soils in this order are commonly sandy in texture, quite acidic and develop primarily under coniferous trees in cool to cold climates

Soils in which of the following soil suborders would most likely have a prominent E horizon under the A horizon?

Because soil development is just beginning in Entisols, these soils are generally less variable in properties than are those in the Andisol or Ultisol orders.

Which of the categories in the Soil Taxonomy system indicates properties that have implications for root growth as well as for the construction of building foundations?

The Soils Around US

Formation of Soils From Parent Materials

Soil Architecture and Physical Properties

Soil Water: Characteristics and Behavior

Soil and the Hydrologic Cycle

Soil Aeration and Temperature

Soil Colloids: Seat of Soil Chemical and Physical Activity

Soil Acidity

Soils of Dry Regions: Alkalinity, Salinity, and Sodicity

Organisms and Ecology of the Soil

Soil Organic Matter

Nitrogen and Sulfur Economy of Soils

Soil Phosphorus and Potassium

Micronutrients and Other Trace Elements

Practical Nutrient Management

Soil Erosion and Its Control

Soils and Chemical Pollution

Geographic Soils Information

Prospects for Global Soil Quality

Filters