2nd Year Test - Coasts

What type of wave has a strong swash and a weak backwash?

• Destructive

• Constructive

• Tsunami

• Erosive

Destructive waves are typically associated with which type of weather?

• Calm, sunny weather

• Summer storms

• Rough seas and strong winds

• Low tides

Which term refers to the distance wind travels across the sea, influencing wave size?

• Fetch

• Swash

• Backwash

• Wave-cut

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

• Abrasion

• Attrition

• Hydraulic Action

• Solution

What happens during attrition?

• Rocks scrape against cliffs

• Rocks collide and break into smaller, rounder pieces

• Salts in water dissolve rocks

• Waves force air into cracks

Longshore drift moves material along the coast in which pattern?

• Straight line

• Zigzag

• Circular

• Random

What determines the direction of longshore drift?

• Prevailing winds

• Wave height

• Rock type

• Coastal vegetation

What type of wave is responsible for building beaches?

• Destructive

• Constructive

• Erosive

• Hydraulic

What is a tombolo?

• A sand ridge connecting an island to the mainland

• A sea stack eroded into a stump

• A lagoon enclosed by a spit

• A wave-cut platform formed by deposition

What is the role of marram grass in stabilising sand dunes?

• Marram grass traps water and attracts tourism

• Marram grass reflects wave energy onto cliffs

• Marram grass traps sand and binds it with deep roots

• Marram grass increases sediment movement