Exploring Coastal Deposition Landforms

What are the primary processes involved in the formation of coastal deposition landforms?

• Volcanic activity and earthquakes

• Tidal waves and currents

• Longshore drift and constructive waves

• Erosion and weathering

How do constructive waves approach the shoreline?

• In a circular motion

• Parallel to the shore

• Perpendicularly

• At an angle

What is a sand spit?

• A type of coral reef

• A ridge of sand extending from the mainland across a bay

• A deep underwater trench

• A hill of sand formed inland

What causes a sand spit to curve inwards at the end?

• Wave refraction

• Wind direction

• Earthquakes

• Tidal changes

What is a lagoon?

• A type of sand dune

• A freshwater lake

• A saltwater lake formed when a bay is closed off by a sandbar

• A deep sea trench

How is a sandbar formed?

• By the deposition of coral

• By volcanic activity

• By the erosion of cliffs

• By the extension of a sand spit completely across a bay

What connects an island to the mainland in the formation of a tombolo?

• A tidal wave

• A coral reef

• A sand spit

• A bridge

What helps to stabilize a tombolo over time?

• Marram grass

• Coral reefs

• Volcanic rocks

• Tidal waves

Where is an example of a tombolo that connects an island to the mainland?

• Trim or in County Waterford

• Sutton in County Dublin

• Our Lady's Island in County Wexford

• Glen Bay in County Kerry

What happens to the tombolo at Ohmy Island in Galway during high tide?

• It becomes more visible

• It connects to another island

• It disappears and the island is cut off from the mainland

• It forms a lagoon