Sea waves Erosion and Deposition





Most of these waves form from wind blowing over the water; sometimes steady winds that blow and sometimes from a storm that forms over the water. The energy of waves does the work of erosion when a wave reaches the shore. The highest part of a wave is called the wave crest. The lowest part is called the wave trough. The vertical distance from the highest part of a wave to the lowest is called the wave height. The horizontal distance between one wave crest and the next crest, is called the wavelength. 
 Wave-cut cliffs form where waves cut into the bottom part of the cliff, eroding away the soil and rocks there. First the waves cut a notch into the base of the cliff. If
enough material is cut away, the cliff above can collapse into the water. Many years of this type of erosion can form a wave-cut platform 
.If waves erode a cliff from two sides, the erosion produced can form an open area in the cliff called an arch. If the material above the arch eventually erodes away, a piece of tall rock can remain in the water, which is called a sea stack.
Rivers carry the sand that comes from erosion of mountains and land areas of the continents to the shore. Soil and rock are also eroded from cliffs and shorelines by waves. That material is transported by waves and deposited in quieter water areas. As the waves come onto shore and break, water and particles move along the shore. When lots of sand accumulates in one place, it forms a beach.
Compiled from various sources                                                 

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