Coastal Management Quiz

What is Integrated Coastal Zone Management (ICZM)?

• A method that uses only hard engineering techniques

• A method that focuses solely on preventing erosion

• A strategy that combines different coastal management techniques to balance stakeholders' needs

• A method that only focuses on economic benefits

Which of the following is an example of soft engineering?

• Sea walls

• Groynes

• Beach replenishment

• Offshore barriers

What is a major disadvantage of beach replenishment?

• It makes beaches narrower

• It has to be repeated regularly, making it expensive

• It accelerates cliff erosion

• It permanently prevents coastal erosion

How does fencing and vegetation help in coastal management?

• It completely stops longshore drift

• It stabilises sand dunes and reduces wind erosion

• It reinforces sea walls

• It prevents wave erosion at the cliff base

What is the main advantage of cliff re-grading?

• It completely stops coastal erosion

• It slows down cliff erosion and prevents sudden collapse

• It increases the speed of longshore drift

• It reduces beach formation

Why might managed retreat be considered controversial?

• It increases the rate of erosion

• It prevents waves from reaching the shore

• It allows land and homes to be lost to the sea

• It is the most expensive option

What is the primary function of a sea wall?

• To trap sediment and build up beaches

• To reduce the impact of wave energy and prevent erosion

• To encourage the formation of dunes

• To allow natural flooding of low-lying areas

What is a disadvantage of groynes?

• They completely stop longshore drift

• They can starve beaches further down the coast of sand

• They encourage wave-cut notching

• They are ineffective against coastal erosion

How does rip-rap (rock armour) protect the coast?

• By reflecting wave energy back to the sea

• By absorbing wave energy at the base of cliffs

• By increasing sediment transport

• By encouraging the formation of salt marshes

What is a major disadvantage of gabions?

• They are the most expensive form of coastal defence

• The wire cages can break over time, requiring maintenance

• They accelerate erosion behind them

• They completely stop erosion