Why do coastal landscapes in the UK differ? Which processes shape them? (a) GapFill

Spits are  outwardcalmpromontoriesheadlands of land that stick out from the coastline. They are made of sand and  oxygenshingleclaytranspiration that have been transported along the coastline by  salt marshtransportationlongshoreoutward drift. This occurs when the  stormyellowpromontoryprevailing winds force the waves onto the beach at an angle. The  tapbackwashswashstability carries material up the beach at an angle. Gravity returns the  sinkbackwashairswash and sediment to the sea at 90 degrees to the beach. Over time, the sediment moves along the beach. When there is a bend in the coastline, the longshore drift continues in  souththe originalanothereast direction. Then the sediment starts to be deposited, forming a  spitarchstackdune.  At the end of a spit there is often a  cliffarchstumprecurve.  This is due to  prevailingoccasionaltransportationbackwash winds coming from another direction and forcing the sediment to be deposited in a different position. Behind the spit there is often a  duneboulderbaysalt marsh.  This is because the sea here is very  turbulentchoppycalmwaved.