Earth and Space Science Quiz: Chemical Weathering

What is chemical weathering?

• The breakdown of rocks through chemical reactions

• The breakdown of rocks through physical processes

• The movement of rocks by wind and water

• The formation of rocks from magma

Which of the following is an example of chemical weathering?

• Frost wedging

• Oxidation

• Abrasion

• Thermal expansion

How does biological weathering differ from chemical weathering?

• Biological weathering involves living organisms

• Biological weathering is a type of mechanical weathering

• Biological weathering does not involve chemical reactions

• Biological weathering only occurs in deserts

What is the key difference between chemical and mechanical weathering?

• Chemical weathering involves physical forces

• Mechanical weathering changes the chemical composition of rocks

• Chemical weathering involves chemical reactions

• Mechanical weathering occurs only in cold climates

Which process is an example of oxidation in weathering?

• Roots growing into rock crevices

• Freezing and thawing of water in cracks

• Rusting of iron in rocks

• Wind erosion of sand dunes

Which of the following processes is an example of mechanical weathering?

• Hydrolysis

• Exfoliation

• Carbonation

• Dissolution

What role do lichens play in weathering?

• They chemically alter rock surfaces

• They prevent weathering by covering rocks

• They only grow on already weathered rocks

• They physically break down rocks

Which factor does not significantly affect the rate of weathering?

• Time of day

• Climate

• Presence of soil

• Rock type

What is the primary agent of erosion in coastal areas?

• Wind

• Water

• Ice

• Gravity

Which type of weathering is most likely to occur in a humid tropical climate?

• Thermal expansion

• Hydrolysis

• Frost wedging

• Salt crystallization