Coastal Erosion and Defenses Quiz

What is beach nourishment?

• The use of concrete and large artificial structures by civil engineers

• The action taken to build up dunes and increase vegetation

• The process of wearing away cliffs by breaking waves

• The addition of new material to a beach artificially

What is dune regeneration?

• The wearing away of cliffs by sediment flung by breaking waves

• Action taken to build up dunes and increase vegetation

• The addition of new material to a beach artificially

• The process by which breaking waves compress pockets of air in cracks in a cliff

What is a gabion?

• Steel wire mesh filled with boulders used in coastal defences

• The process by which breaking waves compress pockets of air in cracks in a cliff

• The use of concrete and large artificial structures by civil engineers

• The addition of new material to a beach artificially

What is hydraulic power?

• The addition of new material to a beach artificially

• The process by which breaking waves compress pockets of air in cracks in a cliff

• The wearing away of cliffs by sediment flung by breaking waves

• The use of concrete and large artificial structures by civil engineers

What is managed retreat?

• The process by which breaking waves compress pockets of air in cracks in a cliff

• The wearing away of cliffs by sediment flung by breaking waves

• The addition of new material to a beach artificially

• Allowing cliff erosion/flooding to occur as nature takes its course

What is rock armour?

• The process by which breaking waves compress pockets of air in cracks in a cliff

• Large boulders dumped on the beach as part of the coastal defences

• The use of concrete and large artificial structures by civil engineers

• The addition of new material to a beach artificially

What is abrasion?

• The addition of new material to a beach artificially

• Erosion caused when rocks and boulders transported by waves bump into each other and break up into smaller pieces

• The use of concrete and large artificial structures by civil engineers

• The wearing away of cliffs by sediment flung by breaking waves

What is attrition?

• The process by which breaking waves compress pockets of air in cracks in a cliff

• The addition of new material to a beach artificially

• Erosion caused when rocks and boulders transported by waves bump into each other and break up into smaller pieces

• The wearing away of cliffs by sediment flung by breaking waves

What is hard engineering?

• The process by which breaking waves compress pockets of air in cracks in a cliff

• The use of concrete and large artificial structures by civil engineers

• The addition of new material to a beach artificially

• The wearing away of cliffs by sediment flung by breaking waves

What is soft engineering?

• The process by which breaking waves compress pockets of air in cracks in a cliff

• Managing erosion by working with natural processes to help restore beaches and coastal ecosystems

• The wearing away of cliffs by sediment flung by breaking waves

• The addition of new material to a beach artificially