COASTAL MANAGEMENT REVISION-QUESTIONS AND ANSWERS GRADED A+

COASTAL MANAGEMENT REVISION-QUESTIONS AND ANSWERS GRADED A+ Swash - ANSWER-The movement of water up the beach after a wave breaks. Backwash - ANSWER-The backward movement of water down a beach when a wave has broken Coastal Erosion - ANSWER-(n) the gradual disappearance of cliffs, beaches, etc. as a result of the action of the sea Deposition - ANSWER-Process in which sediment is laid down in new locations. Transportation - ANSWER-Transportation is the movement of material in the sea and along the coast by waves. The movement of material along the coast is called longshore drift. Coastal zone - ANSWER-The coast, also known as the coastline or seashore, is the area where land meets the sea or ocean, or a line that forms the boundary between the land and the ocean or a lake. Coastal management - ANSWER-Coastal management is defined against flooding and erosion, and techniques that stop erosion to claimed lands. Biophysical processes - ANSWER-Biophysical processes affect biological factors or systems, a biophysical process is a subatomic or molecular process, Hydrogen bonding. Constructive Waves - ANSWER-Constructive waves are flat and low in height and have a long wavelength. Their strong swash carries material up the beach, forming a beach. Destructive Waves - ANSWER-Destructive Waves are height and have very high energy normally occurring on powerful stormy conditions. High frequency is also a characteristic of destructive waves. Therefore the swash is impeded by the backwash from the previous wave. Longshore drift - ANSWER-The movement of water and sediment down a beach caused by waves coming in to shore at an angle Cliff - ANSWER-Formed by erosion between low and high tides undercuts rocks and a rock platform develops. This undercut section eventually becomes weak and collapses. Blowhole - ANSWER-a hole in the roof of a coastal cave, produced by wave erosion, through which compressed air and water are forced as waves break into the cave Headland - ANSWER-formed when coastal rocks are very hard and resist erosion from the waves. Softer rocks either side of the headland are eroded and transported elsewhere. Lagoon - ANSWER-formed when a sandbar begins to develop, eventually closing and estuary. Beaches - ANSWER-formed when material is brought to the shore by waves. The material can be sand, stones or pebbles.