Question 1

What are the major factors that control the rate of chemical weathering?

Accepted Answer

presence of fracture

Question 2

Humus ____.

Accepted Answer

A)  is the material always comprising the topmost soil horizon 
B)  is dark, organic-rich material formed by bacterial decay 
C)  is leaf-litter 
D)  must include sediments 
E)  none of these 
A)  is the material always comprising the topmost soil horizon 
B)  is dark, organic-rich material formed by bacterial decay 
C)  is leaf-litter 
D)  must include sediments 
E)  none of these

Question 3

What processes lead to soil degradation?

Accepted Answer

Soil is lost by erosion,a process that i

Question 4

Under which conditions does pressure release occur?

Accepted Answer

A)  humid and seasonal 
B)  hot and arid 
C)  cold and humid 
D)  where there is uplift and erosion 
E)  where there is faulting and seismic activity 
A)  humid and seasonal 
B)  hot and arid 
C)  cold and humid 
D)  where there is uplift and erosion 
E)  where there is faulting and seismic activity

Question 5

The important weathering product(s)of hydrolysis of feldspar is (are)____.

Accepted Answer

A)  ferromagnesian minerals 
B)  sand minerals 
C)  dissolved calcium 
D)  clay minerals 
E)  accessory minerals 
A)  ferromagnesian minerals 
B)  sand minerals 
C)  dissolved calcium 
D)  clay minerals 
E)  accessory minerals

Question 6

Soils that are a result of intense weathering and are typically found in the tropics are ____________________.

Accepted Answer

The answer of Soils that are a result of intense...

Question 7

Laterite soils are rich in organic matter.

Accepted Answer

A) True 
 B)False

Question 8

Laterite soils are the product of intense leaching.

Accepted Answer

A) True 
 B)False

Question 9

How does mechanical weathering aid chemical weathering?

Accepted Answer

Mechanical weathering produces

Question 10

Briefly explain why water is such an important agent in chemical weathering.

Accepted Answer

Water is a remarkable solvent because of

Question 11

In soil,the A horizon is

Accepted Answer

A)  low in organic matter. 
B)  the site of little biological activity. 
C)  full of sand and gravel. 
D)  composed mostly of clays and stable minerals. 
A)  low in organic matter. 
B)  the site of little biological activity. 
C)  full of sand and gravel. 
D)  composed mostly of clays and stable minerals.

Question 12

Carbonate minerals,like calcite,dissolve readily in a solution that is _______.

Accepted Answer

The answer of Carbonate minerals,like calcite,dissolve readily in a solution...

Question 13

How can organisms contribute to chemical weathering?

Accepted Answer

by the removal of io

Question 14

How does mechanical weathering differ from chemical weathering?

Accepted Answer

In mechanical weathering,physi

Question 15

Briefly explain how exfoliation domes form.

Accepted Answer

Exfoliation domes form from pressure rel

Question 16

How does weathering differ from erosion?

Accepted Answer

Weathering is the breakdown of

Question 17

What is erosion?

Accepted Answer

A)  movement of weathered material from its source site 
B)  decomposition of rock 
C)  disintegration of rock 
D)  weathering of rock and transportation of sediment 
E)  disintegration of soil 
A)  movement of weathered material from its source site 
B)  decomposition of rock 
C)  disintegration of rock 
D)  weathering of rock and transportation of sediment 
E)  disintegration of soil

Question 18

Why do small particles weather more rapidly than large particles?

Accepted Answer

Chemical weathering occurs on

Question 19

Hydrolysis is the chemical reaction between a mineral's ions and

Accepted Answer

A)  water molecules. 
B)  hydrogen and oxygen ions. 
C)  hydrogen and hydroxyl ions. 
D)  hydroxide ions. 
A)  water molecules. 
B)  hydrogen and oxygen ions. 
C)  hydrogen and hydroxyl ions. 
D)  hydroxide ions.

Question 20

List the agricultural practices which reduce the rate of soil erosion and explain why each does so.

Accepted Answer

Crop rotation prevents loss of soil fert

Exam 6: Weathering, Erosion, and Soil

What are the major factors that control the rate of chemical weathering?

Humus ____.

What processes lead to soil degradation?

Under which conditions does pressure release occur?

The important weathering product(s)of hydrolysis of feldspar is (are)____.

Soils that are a result of intense weathering and are typically found in the tropics are ____________________.

Laterite soils are rich in organic matter.

Laterite soils are the product of intense leaching.

How does mechanical weathering aid chemical weathering?

Briefly explain why water is such an important agent in chemical weathering.

In soil,the A horizon is

Carbonate minerals,like calcite,dissolve readily in a solution that is _______.

How can organisms contribute to chemical weathering?

How does mechanical weathering differ from chemical weathering?

Briefly explain how exfoliation domes form.

How does weathering differ from erosion?

What is erosion?

Why do small particles weather more rapidly than large particles?

Hydrolysis is the chemical reaction between a mineral's ions and

List the agricultural practices which reduce the rate of soil erosion and explain why each does so.

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

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