Question 1

Which of the following soils lacks distinctive horizons,is found in tropical regions and has a marked red color?

Accepted Answer

A)  inceptisol
B)  vertisol
C)  histosol
D)  oxisol
E)  spodosol D

Question 2

Which of the following soils would you find associated with the extensive grasslands of the Prairies?

Accepted Answer

A)  mollisol
B)  inceptisol
C)  ultisol
D)  spodosol
E)  entisol A

Question 3

Which of the following soils is normally the least fertile?

Accepted Answer

A)  mollisol
B)  inceptisol
C)  ultisol
D)  spodosol
E)  entisol D

Question 4

Which of the following types of soil particle is the smallest in size?

Accepted Answer

A)  sand
B)  gravel
C)  colloids
D)  clays
E)  silt

Question 5

Which of the following soils would be most likely to accumulate calcium and salts?

Accepted Answer

A)  vertisol
B)  entisol
C)  aridisol
D)  andisol
E)  histosol

Question 6

Colloids are important to soil formation because ____________________.

Accepted Answer

A)  they allow for easy transportation of water
B)  they allow for breaks in the soil so that water and gases can travel through it
C)  they attract base ions which act as nutrients for plants
D)  of their positive charge which allows them to attract acidic compounds
E)  they are a key source of moisture

Question 7

Which of the following soils is dominated by clays that as they swell and contract mix the soil from within?

Accepted Answer

A)  entisol
B)  histosol
C)  vertisol
D)  ultisol
E)  spodosol

Question 8

Which of the following soils would you expect to find in a constantly changing environment such as floodplain?

Accepted Answer

A)  inceptisol
B)  oxisol
C)  histosol
D)  ultisol
E)  spodosol

Question 9

Which of the following features differentiates the different forms of Alfisols?

Accepted Answer

A)  degree of development
B)  prevailing climate
C)  degree of use by humans
D)  fertility
E)  development of the B horizon

Question 10

Which of the following soils would be best described as "poorly developed"?

Accepted Answer

A)  oxisol
B)  alfisol
C)  vertisol
D)  ultisol
E)  entisol

Question 11

_________________ are quite closely related to the Oxisols in outward appearance and environment of origin.But lacking in mineral content and high in clay.

Accepted Answer

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

Question 12

Large masses in a soil that are grouped together to form the soil structure are referred to as:

Accepted Answer

A)  epipedons
B)  bases
C)  colloids
D)  peds
E)  horizons

Question 13

Entisols and inceptisols are two examples of soils with well-developed horizons.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following types of soil particle is the largest in size?

Accepted Answer

A)  sand
B)  gravel
C)  colloids
D)  clays
E)  silt

Question 15

An acidic soil would have a pH of ____________;an alkaline soil would have a pH of ___________;a neutral soil would have a pH of ____________.

Accepted Answer

A)  5;9;7
B)  6;8;9
C)  9;8;7
D)  3;4;5
E)  1;2;3

Question 16

Soils that form from parent material that is comprised largely of volcanic ash are referred to as vertisols.

Accepted Answer

A) True 
 B)False

Question 17

A layer of weathered rock upon which a soil may form is referred to as the:

Accepted Answer

A)  bedrock
B)  humus
C)  colloids
D)  litter
E)  regolith

Question 18

Which of the following describes the order of soil horizons from the surface downwards?

Accepted Answer

A)  A,E,O,C,B
B)  A,O,E,B,C
C)  O,A,E,B,C
D)  O,E,A,B,C
E)  O,A,B,E,C

Question 19

Using examples,compare and contrast the characteristics and origins of B horizons in a selection of tropical and mid-latitude soils.

Accepted Answer

The answer of Using examples,compare and contrast the characteristics and...

Question 20

Humus is finely divided,partially decomposed organic matter that either rests on the soil surface or is mixed through the soil.

Accepted Answer

A) True 
 B)False

Exam 10: Global Soils

Which of the following soils lacks distinctive horizons,is found in tropical regions and has a marked red color?

Which of the following soils would you find associated with the extensive grasslands of the Prairies?

Which of the following soils is normally the least fertile?

Which of the following types of soil particle is the smallest in size?

Which of the following soils would be most likely to accumulate calcium and salts?

Colloids are important to soil formation because ____________________.

Which of the following soils is dominated by clays that as they swell and contract mix the soil from within?

Which of the following soils would you expect to find in a constantly changing environment such as floodplain?

Which of the following features differentiates the different forms of Alfisols?

Which of the following soils would be best described as "poorly developed"?

_________________ are quite closely related to the Oxisols in outward appearance and environment of origin.But lacking in mineral content and high in clay.

Large masses in a soil that are grouped together to form the soil structure are referred to as:

Entisols and inceptisols are two examples of soils with well-developed horizons.

Which of the following types of soil particle is the largest in size?

An acidic soil would have a pH of ______;an alkaline soil would have a pH of _;a neutral soil would have a pH of ________.

Soils that form from parent material that is comprised largely of volcanic ash are referred to as vertisols.

A layer of weathered rock upon which a soil may form is referred to as the:

Which of the following describes the order of soil horizons from the surface downwards?

Using examples,compare and contrast the characteristics and origins of B horizons in a selection of tropical and mid-latitude soils.

Humus is finely divided,partially decomposed organic matter that either rests on the soil surface or is mixed through the soil.