Chapter 10- The Work Of The Sea Flashcards
How does the sea shape the coastline?
Through erosion, transport and deposition.
How do waves erode?
They erode by hydraulic action, abrasion and attrition.
What is hydraulic action?
The force of the waves.
What is abrasion?
Using its load to erode the coast.
What is attrition?
Wearing down the load, rocks are made smaller and smoother.
Name 7 landforms caused by sea erosion.
Bays and headlands, sea cliffs, sea caves, arches, sea stacks, stumps, blowholes.
How does the sea transport its load?
Using awash and backwash.
What occurs during longshore drift?
Sea transports its material diagonally along the coast. Controlled by groynes.
Name 5 features caused by sea deposition.
Beaches, spits, bars, lagoons, tombolos.
Name 5 ways the sea helps people.
Tourism, oil and gas deposits, recreation, ports, the fishing industry.
Name 2 ways the sea hinders people.
Coastal erosion, flooding.
How do people try to protect the coast from erosion?
Using sea walls, gabions, rock armour, groynes, marram grass.
