Test: Coastal Management - Year 3 MCQ

Land further along the coast may suffer from increased erosion

Hard engineering solutions are often more expensive than the land they are saving

Offshore features such as sand banks and spits may vanish

The land and property in the immediate area are protected from coastal retreat

The curve of the wall reflects the wave energy back out towards the sea

The wall diverts the sea onto low lying land away from settlements

The solid nature of the wall protects softer material behind

The height of the wall helps stop storm waves flooding vulnerable settlements

Prevent people visiting the dunes

Build boardwalks and attempt to focus the foot traffic in those areas

Increase the number of animals, such as sheep, on the dunes

Prevent longshore drift using hard engineering techniques

The grass makes the area more attractive to tourists bringing money into the area

Marram grass is so tough it can be driven over and won't die. This gives a tough top surface to the sand dunes allowing traffic to move over them

Animals avoid marram grass and so don't graze on the sand dunes. The grazing would mean that the animals carry sand away as they move across the system

The marram grass stabilises the sand dunes and allows the cycle of beach succession to occur rather than the dunes blowing away and being transported along the coast

Local authorities knock down sea defenses and dig channels to allow the sea to reclaim the area

Houses are removed from areas near the coastline and the coastline is abandoned

Areas of the coast are allowed to erode and flood naturally

Only soft engineering techniques are used

The Thames Barrier

Creating salt marshes

Building groynes

Building sea walls

Groynes can be unattractive

Groynes are costly to build and maintain as they often erode and are attacked by wood-boring animals

Groynes can increase erosion downstream

Groynes allow a beach to build up against their structure

The process of building sandcastles on the beach 

The movement of sand from the beach to the ocean 

The gradual wearing away of land by waves and currents 

The growth of coral reefs near the shore

By preventing sand dunes from forming

By trapping sediment and building up beaches

By encouraging erosion along the coast

By allowing unrestricted water flow along the shore

They attract tourists to coastal areas 

They provide habitat for marine life

They prevent waves from reaching the shore

They increase coastal erosion