Coastal Erosion and Glaciation Quiz

What is the purpose of sea walls?

• To create beaches

• To transport boulders

• To stop waves from reaching the land

• To build up the beach

Which method looks more natural than sea walls?

• Groynes

• Rip-raps

• Rebuilding beaches

• Glaciation

What are groynes used for?

• To form pyramid peaks

• To create hanging valleys

• To slow the movement of material along the coast

• To stop waves

What is a pyramid peak?

• A type of sea wall

• A sharply pointed mountain peak

• A long narrow lake

• A boulder transported by glaciers

What do corrie lakes form from?

• Glacial movement

• Sea wall construction

• Melting glaciers

• Erosion by rivers

What happens to a V-shaped valley as a glacier moves through it?

• It becomes a pyramid peak

• It turns into a hanging valley

• It disappears completely

• It becomes a U-shaped valley

What are erratics?

• Sharp mountain ridges

• Boulders transported by glaciers

• Deep lakes formed by glaciation

• Long narrow lakes

What is an arete?

• A type of sea wall

• A sharp mountain ridge

• A boulder transported by glaciers

• A deep lake at the base of a mountain

What do hanging valleys represent?

• Long narrow lakes in the main valley

• Deep lakes formed by glaciation

• Smaller valleys that have been eroded less than the main valley

• Valleys that have been eroded more than the main valley

What is the main effect of glaciation on mountains?

• They become taller

• They become rounder

• They disappear completely

• They can change from rounded to steep and narrow