Coastal Management Quiz

What is the primary purpose of sea walls?

• To enhance tourism

• To keep the sea out

• To promote beach access

• To increase wave energy

Which of the following is a disadvantage of sea walls?

• They are inexpensive to build

• They enhance beach access

• They can suffer from wave scour

• They require no maintenance

What material are groynes typically made of?

• Metal

• Plastic

• Hard wood or concrete

• Sand

How do groynes help manage coastlines?

• By increasing wave energy

• By promoting the deposition of sand

• By removing sand from beaches

• By enhancing public access

What is a gabion?

• A type of sea wall

• A metal cage filled with rocks

• A wooden fence

• A concrete barrier

What is a disadvantage of using gabions?

• They are very expensive

• They are not effective at absorbing wave energy

• They can rust and be damaged during storms

• They require no maintenance

What is the cost of building groynes per metre?

• $10,000

• $5,000

• £10 million

• £200

What is the main function of gabions in coastal management?

• To enhance tourism

• To absorb wave energy

• To increase beach access

• To promote sand deposition

What is a common issue with sea walls in terms of aesthetics?

• They are visually appealing

• They enhance natural beauty

• They can be considered unattractive

• They promote tourism

How often do sea walls require maintenance?

• Every 50 years

• Annually

• Every 10 years

• Never