Question 1

Which soil horizon is the most important to farmers for planting crops?

Accepted Answer

A)  C 
B)  A 
C)  E 
D)  B 
A)  C 
B)  A 
C)  E 
D)  B

Question 2

Which letter corresponds to the regolith in the following picture?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 3

What are the similarities and differences between physical and chemical weathering? Make sure to address both what is the same and what is different.

Accepted Answer

Physical and chemical weathering both wo

Question 4

Why does physical weathering speed up the processes of chemical weathering?

Accepted Answer

A)  Physical weathering requires abundant water,as does chemical weathering. 
B)  Physical weathering produces more surface area for chemical weathering to attack. 
C)  Chemical weathering can occur only on small surfaces,not large ones. 
D)  Chemical weathering requires salt,which is provided by salt wedging. 
A)  Physical weathering requires abundant water,as does chemical weathering. 
B)  Physical weathering produces more surface area for chemical weathering to attack. 
C)  Chemical weathering can occur only on small surfaces,not large ones. 
D)  Chemical weathering requires salt,which is provided by salt wedging.

Question 5

Which of the following is a type of physical weathering?

Accepted Answer

A)  thermal expansion 
B)  dissolution 
C)  oxidation 
D)  hydration 
A)  thermal expansion 
B)  dissolution 
C)  oxidation 
D)  hydration

Question 6

Which of the following is LEAST likely to affect soil thickness?

Accepted Answer

A)  time 
B)  types of animals 
C)  climate 
D)  vegetation type 
A)  time 
B)  types of animals 
C)  climate 
D)  vegetation type

Question 7

Which soil horizon contains the most organic material?

Accepted Answer

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

Question 8

What type of weathering are you most likely to find occurring on the coast?

Accepted Answer

A)  dissolution 
B)  thermal expansion 
C)  salt wedging 
D)  root wedging 
A)  dissolution 
B)  thermal expansion 
C)  salt wedging 
D)  root wedging

Question 9

List one factor that controls the thickness of soil and describe how this factor controls soil thickness.

Accepted Answer

Answers will vary but may include the fo

Question 10

What type of weathering has produced the honeycomb-like features shown in the following photo?

Accepted Answer

A)  salt wedging 
B)  frost wedging 
C)  dissolution 
D)  hydration 
A)  salt wedging 
B)  frost wedging 
C)  dissolution 
D)  hydration

Question 11

Hydration occurs when minerals

Accepted Answer

A)  are dissolved into water. 
B)  are turned into rust. 
C)  absorb water and expand. 
D)  are removed by frost. 
A)  are dissolved into water. 
B)  are turned into rust. 
C)  absorb water and expand. 
D)  are removed by frost.

Exam 25: a Surface Veneer: Sediments and Soils

Which soil horizon is the most important to farmers for planting crops?

Which letter corresponds to the regolith in the following picture?

What are the similarities and differences between physical and chemical weathering? Make sure to address both what is the same and what is different.

Why does physical weathering speed up the processes of chemical weathering?

Which of the following is a type of physical weathering?

Which of the following is LEAST likely to affect soil thickness?

Which soil horizon contains the most organic material?

What type of weathering are you most likely to find occurring on the coast?

List one factor that controls the thickness of soil and describe how this factor controls soil thickness.

What type of weathering has produced the honeycomb-like features shown in the following photo?

Hydration occurs when minerals

Cosmology and the Birth of the Earth

Journey to the Center of the Earth

Drifting Continents and Spreading Seas

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

Pages of Earths Past: Sedimentary Rocks

Metamorphism: a Process of Change

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Crags,cracks,and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of the Earth

Squeezing Power From a Stone: Energy Resources

Riches in Rock: Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: the Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

An Envelope of Gas: the Earths Atmosphere and Climate

Dry Regions: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Introducing Rocks

the Rock Cycle in the Earth System

the Earths Interior, Revisited: Seismic Layering, Gravity, and the Magnetic Field

Memories of Past Life: Fossils and Evolution

Ever-Changing Landscapes and the Hydrologic Cycle

Prelude: and Just What Is Geology

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