Earth Science Unit 3: Weathering Introduction Quiz

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What are the two main types of weathering?

Exfoliation and Erosion

Mechanical and Chemical (correct)

Igneous and Sedimentary

Volcanic and Metamorphic

What is weathering?

The formation of new rocks from existing rocks

The movement of rock from one place to another

The process of rock formation

The physical and chemical breakdown of rock at or near the Earth's surface (correct)

How does weathering affect rock strength and permeability?

It increases rock strength and reduces permeability

It decreases rock strength and has no effect on permeability

It reduces rock strength and increases permeability (correct)

It has no effect on rock strength or permeability

What contributes to the physical and chemical breakdown of exposed rock?

High temperatures, pressures, and substances, especially water Signup and view all the answers

What does weathering make rock more susceptible to?

Mass wasting and erosion Signup and view all the answers

What is the primary function of weathering?

To decrease the strength and permeability of rocks Signup and view all the answers

After studying the module, what should students be able to do?

Define weathering and distinguish between the two main types of weathering Signup and view all the answers

Which type of weathering involves physical forces that break rock into smaller pieces without changing the mineral composition?

Mechanical weathering Signup and view all the answers

What is the main source of power for mechanical weathering?

Gravity Signup and view all the answers

What is the process that occurs when moist soils freeze and expand, leading to the growth of ice lenses?

Frost heave Signup and view all the answers

What is the unique property of liquid water that contributes to frost wedging?

Expanding about 9 percent upon freezing Signup and view all the answers

Which process leads to the fragmentation of rock through the movement of mobile agents such as gravity, wind, and water?

Erosional agents Signup and view all the answers

What is the result of mechanical weathering?

Breaking rocks into smaller pieces without changing mineral composition Signup and view all the answers

Which type of weathering involves chemical change that alters the chemical composition of rocks?

Chemical weathering Signup and view all the answers

What are the two main types of weathering?

Physical and chemical Signup and view all the answers

Which process occurs when moist soils freeze and expand, leading to the growth of ice lenses?

Frost wedging Signup and view all the answers

What contributes to the physical and chemical breakdown of exposed rock?

Environmental conditions at and near Earth’s surface Signup and view all the answers

What is the primary function of weathering?

To break down rock on earth’s surface Signup and view all the answers

How does weathering affect rock strength and permeability?

It decreases strength and increases permeability Signup and view all the answers

What is weathering?

The breakdown and alteration of rocks at or near the Earth’s surface Signup and view all the answers

What is the unique property of liquid water that contributes to frost wedging?

It expands about 9 percent upon freezing Signup and view all the answers

What contributes to the physical and chemical breakdown of exposed rock?

Gravity, water, and wind Signup and view all the answers

What is the primary function of weathering?

To break down rocks into smaller pieces Signup and view all the answers

What is the main source of power for mechanical weathering?

Gravity, water, and wind Signup and view all the answers

Which type of weathering involves physical forces that break rock into smaller pieces without changing the mineral composition?

Mechanical weathering Signup and view all the answers

What does freeze-thaw action or frost wedging mainly involve?

Expansion of water when it freezes Signup and view all the answers

What is the process that occurs when moist soils freeze and expand, leading to the growth of ice lenses?

Frost heave Signup and view all the answers

How does chemical weathering differ from physical/mechanical weathering?

Chemical weathering involves altering the chemical composition of rocks, while physical/mechanical weathering only breaks rocks into smaller pieces. Signup and view all the answers

What contributes to the fragmentation of rock by exerting pressure on it during mechanical weathering?

Unloading (sheeting) Signup and view all the answers

What is the end result of mechanical weathering on a rock?

Many small pieces from a single large one. Signup and view all the answers

Earth Science Unit 3: Weathering Introduction Quiz

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Questions and Answers

What are the two main types of weathering?

What is weathering?

How does weathering affect rock strength and permeability?

What contributes to the physical and chemical breakdown of exposed rock?

What does weathering make rock more susceptible to?

What is the primary function of weathering?

After studying the module, what should students be able to do?

Which type of weathering involves physical forces that break rock into smaller pieces without changing the mineral composition?

What is the main source of power for mechanical weathering?

What is the process that occurs when moist soils freeze and expand, leading to the growth of ice lenses?

What is the unique property of liquid water that contributes to frost wedging?

Which process leads to the fragmentation of rock through the movement of mobile agents such as gravity, wind, and water?

What is the result of mechanical weathering?

Which type of weathering involves chemical change that alters the chemical composition of rocks?

What are the two main types of weathering?

Which process occurs when moist soils freeze and expand, leading to the growth of ice lenses?

What contributes to the physical and chemical breakdown of exposed rock?

What is the primary function of weathering?

How does weathering affect rock strength and permeability?

What is weathering?

What is the unique property of liquid water that contributes to frost wedging?

What contributes to the physical and chemical breakdown of exposed rock?

What is the primary function of weathering?

What is the main source of power for mechanical weathering?

Which type of weathering involves physical forces that break rock into smaller pieces without changing the mineral composition?

What does freeze-thaw action or frost wedging mainly involve?

What is the process that occurs when moist soils freeze and expand, leading to the growth of ice lenses?

How does chemical weathering differ from physical/mechanical weathering?

What contributes to the fragmentation of rock by exerting pressure on it during mechanical weathering?

What is the end result of mechanical weathering on a rock?

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