Understanding Coastal Erosion Processes

What is erosion?

• The process of rocks being formed

• The process of rocks being worn away

• The process of rocks being painted

• The process of rocks being melted

Which process of erosion involves waves forcing air into cracks in the rock?

• Abrasion

• Solution

• Hydraulic action

• Attrition

What is abrasion in the context of erosion?

• Rocks dissolving in water

• Rocks crashing into each other

• Sediment wearing away the surface

• Air being forced into cracks

Which type of rock is most likely to be dissolved by chemicals in water during erosion?

• Granite

• Limestone

• Sandstone

• Basalt

What is the result of attrition in the erosion process?

• Rocks become larger

• Rocks become smoother and more rounded

• Rocks become sharper

• Rocks become more colourful

Which of the following is NOT a process of erosion?

• Hydraulic action

• Abrasion

• Evaporation

• Attrition

How does hydraulic action contribute to erosion?

• By dissolving rocks

• By carrying sediment

• By forcing air into cracks

• By heating rocks

What is the main debate about the solution process in coastal erosion?

• How much it contributes to erosion

• How fast it occurs

• How colourful it makes the rocks

• How it affects the temperature

Which process of erosion is similar to the action of sandpaper?

• Solution

• Attrition

• Abrasion

• Hydraulic action

What happens to rocks during the process of attrition?

• They dissolve in water

• They break into smaller pieces

• They become more angular

• They become smoother