Question 1

What are the principle controls on soil formation?

Accepted Answer

climate,parent mater

Question 2

A soil that is rich in clay and expands by more than 6% is an expansive soil.

Accepted Answer

A) True 
 B)False

Question 3

____________________ is an essential component of soil as it provides nutrients to plants and increases the ability of the soil to retain ____________________.

Accepted Answer

The answer of ____________________ is an essential component of soil...

Question 4

What is a source of carbon dioxide for carbonic acid?

Accepted Answer

A)  the atmosphere 
B)  soil 
C)  groundwater 
D)  surface water 
E)  all of these 
A)  the atmosphere 
B)  soil 
C)  groundwater 
D)  surface water 
E)  all of these

Question 5

Which of the following is not a factor influencing the rate of chemical weathering?

Accepted Answer

A)  climate 
B)  particle size 
C)  parent material 
D)  humidity 
E)  gravity 
A)  climate 
B)  particle size 
C)  parent material 
D)  humidity 
E)  gravity

Question 6

Weathering that takes place at different rates even in the same area is called

Accepted Answer

A)  mechanical weathering. 
B)  differential weathering. 
C)  chemical weathering. 
D)  original weathering. 
A)  mechanical weathering. 
B)  differential weathering. 
C)  chemical weathering. 
D)  original weathering.

Question 7

Acid rain is a problem in regions near the source of the emissions but,unlike global warming,it is not a worldwide problem.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following contribute to weathering?

Accepted Answer

A)  organisms such as worms, bacteria, and trees 
B)  oxygen and carbon dioxide in the air 
C)  rain water 
D)  organic acids 
E)  all of these 
A)  organisms such as worms, bacteria, and trees 
B)  oxygen and carbon dioxide in the air 
C)  rain water 
D)  organic acids 
E)  all of these

Question 9

Weathering is classified into which of the following categories?

Accepted Answer

A)  mechanistic and compositional 
B)  mechanical and physical 
C)  chemical and physical 
D)  physical and chemical 
E)  organic and inorganic 
A)  mechanistic and compositional 
B)  mechanical and physical 
C)  chemical and physical 
D)  physical and chemical 
E)  organic and inorganic

Question 10

How do soils that form in semi-arid to arid regions differ in their basic characteristics from soils that form in humid regions?

Accepted Answer

Soils that form in semi-arid to arid reg

Question 11

Thermal expansion and contraction occur most commonly in which of the following conditions?

Accepted Answer

A)  cold and hot 
B)  arid and cold 
C)  humid and hot 
D)  arid and hot 
E)  humid and cold 
A)  cold and hot 
B)  arid and cold 
C)  humid and hot 
D)  arid and hot 
E)  humid and cold

Question 12

Clay particles in soil are important to soil development because ____.

Accepted Answer

A)  They hold soil particles apart. 
B)  They allow water and gases to enter soil. 
C)  They retain water and supply nutrients. 
D)  They allow the flow of groundwater. 
E)  They drain poorly. 
A)  They hold soil particles apart. 
B)  They allow water and gases to enter soil. 
C)  They retain water and supply nutrients. 
D)  They allow the flow of groundwater. 
E)  They drain poorly.

Question 13

On a pH scale,the pH value of something neutral is _______; the pH of normal rain is _____ and acid rain is less than _____.

Accepted Answer

The answer of On a pH scale,the pH value of...

Question 14

Pressure release is a mechanical weathering process that occurs often in intrusive rocks such as those formed in batholiths.

Accepted Answer

A) True 
 B)False

Question 15

Thermal expansion and contraction occur because rock is an excellent conductor of heat.

Accepted Answer

A) True 
 B)False

Question 16

How does regolith differ from soil?

Accepted Answer

Regolith is unconsolidated roc

Question 17

Carbonic acid forms from the combination of

Accepted Answer

A)  water and bicarbonate ion. 
B)  water and carbon dioxide. 
C)  carbon dioxide and hydrogen ion. 
D)  calcium ion and bicarbonate ion. 
A)  water and bicarbonate ion. 
B)  water and carbon dioxide. 
C)  carbon dioxide and hydrogen ion. 
D)  calcium ion and bicarbonate ion.

Question 18

Which of the following is a means of mechanical weathering?

Accepted Answer

A)  frost wedging 
B)  pressure release 
C)  thermal expansion and contraction 
D)  burrowing and root wedging 
E)  all of these 
A)  frost wedging 
B)  pressure release 
C)  thermal expansion and contraction 
D)  burrowing and root wedging 
E)  all of these

Question 19

List some ways in which organisms contribute to mechanical weathering.

Accepted Answer

burrowing/particle m

Question 20

A rock may be subjected to either mechanical or chemical weathering but never both at the same time.

Accepted Answer

A) True 
 B)False

Exam 6: Weathering, Erosion, and Soil

What are the principle controls on soil formation?

A soil that is rich in clay and expands by more than 6% is an expansive soil.

____________________ is an essential component of soil as it provides nutrients to plants and increases the ability of the soil to retain ____________________.

What is a source of carbon dioxide for carbonic acid?

Which of the following is not a factor influencing the rate of chemical weathering?

Weathering that takes place at different rates even in the same area is called

Acid rain is a problem in regions near the source of the emissions but,unlike global warming,it is not a worldwide problem.

Which of the following contribute to weathering?

Weathering is classified into which of the following categories?

How do soils that form in semi-arid to arid regions differ in their basic characteristics from soils that form in humid regions?

Thermal expansion and contraction occur most commonly in which of the following conditions?

Clay particles in soil are important to soil development because ____.

On a pH scale,the pH value of something neutral is _______; the pH of normal rain is _____ and acid rain is less than _____.

Pressure release is a mechanical weathering process that occurs often in intrusive rocks such as those formed in batholiths.

Thermal expansion and contraction occur because rock is an excellent conductor of heat.

How does regolith differ from soil?

Carbonic acid forms from the combination of

Which of the following is a means of mechanical weathering?

List some ways in which organisms contribute to mechanical weathering.

A rock may be subjected to either mechanical or chemical weathering but never both at the same time.

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals The Building Blocks of Rocks

Igneous Rocks and Plutons

Volcanoes and Volcanism

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earth's Interior

Deformation,Mountain Building,and Earth's Crust

Mass Wasting

Running Water Streams and Rivers

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Organic Evolution The Theory and Its Supporting Evidence

Precambrian Earth and Life History

Paleozoic Earth History

Paleozoic Life History

Mesozoic Earth and Life History

Cenozoic Earth and Life History

Geology in Perspective

Filters

is an essential component of soil as it provides nutrients to plants and increases the ability of the soil to retain .

On a pH scale,the pH value of something neutral is _____; the pH of normal rain is _ and acid rain is less than ___.