quiz 24

Question 1

Give 2 advantages and 2 disadvantages of beach nourishment and reprofiling

Answer 1

advantages: creates wide beaches which are protected from erosion, encourages tourism

disadvantages: needs to be a continuous process, sand often has to be brought from elsewhere

Question 2

Give 2 advanatges and 2 disadvantages of managed retreat

Answer 2

advantages: cheap, can create new habitats like salt marshes
disadvantages: can be only be carried out on low-value land, can have an effect on their neighbouring ecosystems

Question 3

What are sea walls?

Answer 3

concrete walls placed at the foot of a cliff

Question 4

Give 2 advantages and 2 disadvantages of gabions

Answer 4

advanatges: cheap,easy to build
disadvanatges: look different to the rest of the area, break apart over time

Question 5

What are gryones?

Answer 5

wooden structures built at right angles to the coast to prevent longshore drift