Using examples you have studied, compare the processes of erosion which occur in two contrasting environments.
... is when the clay gets wet and then dries and when this happens over and over again it causes deep cracks to appear. Eventually the cliff begins to break down and the material is washed away by the sea. At Sandy point there is a different sort of coastal erosion. As there is a long shore drift large amounts of material are moved along the coastline until the coastline changes direction. The material is then deposited here and it gradually builds up and forms what is called a spit. The end of the spit is usually curved because strong currents push the material towards the land. In Canada the Athabasca Glacier is a glacial environment and experiences different kinds of erosion. Glaciers take thousands of years to form and can change the shape of the land very dramatically A glacier is formed by year after year snow falls and it compresses, as it is in a cold environment the snow never melts so it builds up. Underneath all the snow it forms ice as it so cold. It slowly gets bigger and very slowly moves down the hill but it is unnoticeable to the eye. Moraine is formed as the glacier slowly moves down the valley and ridges of material is deposited at the edges or if it moves round a rock it is sometimes formed in the middle. The rock that is in the middle of the glacier got there as it broke of the top of the mountain and has landed on the glacier, it then travels on the glacier and sometimes the ice freezes on the rock and pulls the rock apart which is called plucking. If the rock had a crack in it then it could be eroded by freeze thaw action which is when water fills in the crack in a rock and the water freezes, the crack is made wider by the ice and breaks into several pieces. As this material is carried along by the glacier is sometimes acts like sandpaper ...