Question 1

A(n) ________ is a common boundary where different parts of a system interact.

Accepted Answer

A)  sphere
B)  interface
C)  delineation
D)  geosphereE) B) and C)
F) A) and B)

Question 2

Explain how climate can affect the other four controls of soil formation.

Accepted Answer

Answers will vary, but can include:
- Va...

Question 3

Using the order of crystallization on the Bowen's reaction Series, rate the resistance of silicate minerals to chemical weathering.In other words, which mineral(s)weather first and why? And last?

Accepted Answer

Olivine, which forms at high temperature...

Question 4

Which of the following is not an agent of erosion?

Accepted Answer

A)  Running water
B)  Heat
C)  Ice
D)  WindE) All of the above
F) C) and D)

Question 5

Thermal expansion and thermal contraction are two processes where the presence of heat will weather a rock, breaking it into smaller pieces.In which category of weathering would you expect to find thermal expansion and contraction? Why?

Accepted Answer

Mechanical weatherin...

Question 6

Which acid is commonly responsible for the dissolution of limestone?

Accepted Answer

A)  Nitric
B)  Carbonic
C)  Sulfuric
D)  HydrochloricE) A) and C)
F) C) and D)

Question 7

An order has arrived that the original cube must be broken down into eight cubic pieces of marble, all of the same dimension of 6 square feet per cube.What is the total surface area of the marble now?

Accepted Answer

The cube has now been broken into eight ...

Question 8

Which soil formation characteristic will most strongly influence a soil when it is young? When it is old?

Accepted Answer

When a soil is young, the character of t...

Question 9

Soil develops in response to interactions between which Earth spheres?

Accepted Answer

A)  Hydrosphere and atmosphere
B)  Geosphere, atmosphere, and biosphere
C)  Geosphere, hydrosphere, and atmosphere
D)  Biosphere, atmosphere, geosphere, and hydrosphereE) B) and C)
F) A) and B)

Question 10

________ is considered the most influential control of soil formation

Accepted Answer

A)  Parent material
B)  Plants
C)  Climate
D)  TimeE) B) and D)
F) B) and C)

Question 11

Which of the following is a good method to reduce soil erosion as a result of strong winds?

Accepted Answer

A)  Planting grass in natural drainageways
B)  Creating terraces on steep slopes
C)  Planting rows of trees and shrubs
D)  Plant rows for crops that are oriented straight up the slopeE) None of the above
F) A) and B)

Question 12

A soil's parent material can consist of weathered mineral matter.

Accepted Answer

A) True 
 B)False  True

Question 13

Which of the following components makes up the largest percentage of most soils?

Accepted Answer

A)  Mineral portion
B)  Pores filled with water
C)  Organic portion
D)  Pores filled with airE) A) and C)
F) C) and D)

Question 14

A vertical succession of soil horizons is called a soil profile.

Accepted Answer

A) True 
 B)False

Question 15

Which weathering process is illustrated in this image?

Accepted Answer

A)  Exfoliation
B)  Root wedging
C)  Hydrolysis
D)  Frost wedgingE) A) and D)
F) All of the above

Question 16

What is the definition of eluviation?

Accepted Answer

A)  Decayed organic material
B)  Accumulation of fine clay particles in a soil column
C)  Downward transportation of fine clay particles in a soil column
D)  The collective term for the O, A, E, and B horizonsE) A) and B)
F) B) and C)

Question 17

Oxidation is an effective method to weather iron in olivine.However, what must happen first to free the iron?

Accepted Answer

A)  Root wedging to break up the olivine
B)  Melting of the olivine
C)  Dissolution of olivine
D)  Hydrolysis acting on the olivineE) A) and B)
F) A) and D)

Question 18

Why is soil a nonrenewable resource?

Accepted Answer

A)  Because it forms very slowly
B)  Because there is a limited amount of soil on the Earth and it cannot be replaced
C)  Because it is not commonly used for human commerce
D)  Because it cannot be privately ownedE) B) and D)
F) None of the above A

Question 19

Water expands when it freezes.

Accepted Answer

A) True 
 B)False  True

Question 20

Because weathering involves the destruction of geologic materials, many people view the process as a bad thing.However, weathering can also be viewed as a positive process.Provide an example of one positive aspect of weathering that makes the processes not only important, but necessary.Explain.

Accepted Answer

Answers will vary but can incl...

Exam 6: Weathering and Soil

A(n) ________ is a common boundary where different parts of a system interact.

Correct AnswerverifiedShow Answer

Explain how climate can affect the other four controls of soil formation.

Correct AnswerverifiedAnswers will vary, but can include:- Va...View AnswerShow Answer

Using the order of crystallization on the Bowen's reaction Series, rate the resistance of silicate minerals to chemical weathering.In other words, which mineral(s)weather first and why? And last?

Correct AnswerverifiedOlivine, which forms at high temperature...View AnswerShow Answer

Which of the following is not an agent of erosion?

Correct AnswerverifiedShow Answer

Thermal expansion and thermal contraction are two processes where the presence of heat will weather a rock, breaking it into smaller pieces.In which category of weathering would you expect to find thermal expansion and contraction? Why?

Correct AnswerverifiedMechanical weatherin...View AnswerShow Answer

Which acid is commonly responsible for the dissolution of limestone?

Correct AnswerverifiedShow Answer

An order has arrived that the original cube must be broken down into eight cubic pieces of marble, all of the same dimension of 6 square feet per cube.What is the total surface area of the marble now?

Correct AnswerverifiedThe cube has now been broken into eight ...View AnswerShow Answer

Which soil formation characteristic will most strongly influence a soil when it is young? When it is old?

Correct AnswerverifiedWhen a soil is young, the character of t...View AnswerShow Answer

Soil develops in response to interactions between which Earth spheres?

Correct AnswerverifiedShow Answer

________ is considered the most influential control of soil formation

Correct AnswerverifiedShow Answer

Which of the following is a good method to reduce soil erosion as a result of strong winds?

Correct AnswerverifiedShow Answer

A soil's parent material can consist of weathered mineral matter.

Correct AnswerverifiedTrue

Which of the following components makes up the largest percentage of most soils?

Correct AnswerverifiedShow Answer

A vertical succession of soil horizons is called a soil profile.

Correct AnswerverifiedShow Answer

Which weathering process is illustrated in this image?

Correct AnswerverifiedShow Answer

What is the definition of eluviation?

Correct AnswerverifiedShow Answer

Oxidation is an effective method to weather iron in olivine.However, what must happen first to free the iron?

Correct AnswerverifiedShow Answer

Why is soil a nonrenewable resource?

Correct AnswerverifiedA

Water expands when it freezes.

Correct AnswerverifiedTrue

Because weathering involves the destruction of geologic materials, many people view the process as a bad thing.However, weathering can also be viewed as a positive process.Provide an example of one positive aspect of weathering that makes the processes not only important, but necessary.Explain.

Correct AnswerverifiedAnswers will vary but can incl...View AnswerShow Answer

Correct Answer
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Correct Answer
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Answers will vary, but can include:
- Va...
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Olivine, which forms at high temperature...
View Answer

Correct Answer
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Correct Answer
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Mechanical weatherin...
View Answer

Correct Answer
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The cube has now been broken into eight ...
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When a soil is young, the character of t...
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True

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A

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True

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Answers will vary but can incl...
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