Cliffs,+Notches+and+Wave+cut+platforms

__**CLIFFS WHAT ARE THEY?**__ Cliffs are significant,almost vertical,and levelled platforms which are found on different parts of the earth.They are distinct rock exposures which are found on the earth's surface,mainly near the coasts.They appear in ranging heights,some cliffs can be very low Cliffs are significant,almost vertical and distiin height,whereas some of them reach upto big heights such as the Karakoram Range in the Himalayas. Some cliffs can be found underwater as well,like the Mariana Trench under the Pacific Ocean,which is one of the deepest cliffs in the world.Different cliffs which are found in different places,have different names,for example the ones in the oceans are called trenches (mariana trench in the pacific ocean),and escarpment is a special type of cliff which is made from highly resistant rock,mainly igneous rock.

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HOW ARE CLIFFS FORMED?__** Cliffs are composed of highly resistant rocks such as igneous and sedimentary rocks. Igneous rocks include Granite and Basalt,and sedimentary rocks include Chalk,dolomite,sandstone and limestone.Cliffs are formed as eroded landforms,due to erosion and weathering (mainly freeze thaw). Sea Cliffs are mainly formed due to the action of highly destructive waves, and then erode a steep coastal wave by the processes of hydraulic action and abrasion.The waves then erode the lines of weakness in the rock face to form a notch.Continued erosion enlarges the rock and causes its root to collapse,hence forming a cliff.

__**CLIFFS AND WAVE CUT PLATFORMS**__ Cliffs are often confused with wave cut platforms,but they aren't the same.Wave cut platforms are found at the base of cliff and are flat,whereas cliffs are distinctive landmarks on the earth surface.The only similarity that they have in common with each other is that they are formed by wave erosion,but the composition of wave cut platforms is not by resistant rocks,but is made from the deposition of fertile soil and rocks that is dropped by the swash.The wave cut platform only manages the direction of the movement of the wave,especially of that of the swash and it also controls the amount of erosion and the fertility of the soil which is deposited. As the name suggests,this certain area is formed by the action of the crest and the swash. On top of the wave cut platforms the cliff is formed from high resistant rocks.



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__HOW WAVE-CUT PLATFORMS ARE FORMED__
It forms after destructive waves hit against the cliff, causing undercutting between the high and low water marks creating a notch. The notch then enlarges and becomes a cave. The waves continue undercutting the cliff and after a while the roof of the cave collapses. this is how the wavecut platforms are formed.

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