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Word Count: 388
A factor in coastal erosion is the sea level rise It cause erosion and it takes from centuries to milleniums It is relative to the rise and fall of the sea As the sea level rises it covers more sediments and as it lowers some of the sediments that it covers is taken back out with the tide A storm surge causes erosion It takes from a few hours to a few days A major effect of a storm surge is a large wave which will erode a coastline quickly The larger the wave the more sediments it will carry out Normal waves will take longer to erode a shoreline but eventually be as effective as a larger wave Along shore currents will not erode a beach away but will change the shape of one Within a time period of a few hours to a millenium the updrift or downdrift will carry the sand from one point to another thus fort changing the shape of the beach Rip currents will erode a beach within a couple of hours to a many months The rip currents can carry significant amounts of sediment and during a storm can carry even more sediments away from the shore line Another factor of along shore currents is a under flow which a near-bottom current that will carry the same if not more amount of sediments than a rip current Underflow is also increased by a coastal storm Wind is a major effect of coastal erosion Wind can blow the sand from the beach into the water helping to cause sandbars that are close to the shoe It can also blow sand away from the water causing the water to more closer inland This can take up to a few centuries Subsidence Ttectonic causes erosion and accretion
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