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composed of sand, coastal erosion creates little problem for the beach because it uses this sand to Chapter 9 Beach Erosion and Loss 3 sustain the environment. After all, sand is the lifeblood of beaches. However, migrating upward and landward through space and time does create a huge problem for buildings and roads built too close to the shoreline. And therein lies the rub â protecting the land with a seawall will lead to beach loss.
Erosion is the displacement of solids, differing from weathering, which is a BREAKDOWN in minerals. There are 5 types of erosion: gravity, water, shoreline, ice, and wind. Gravity erosion drives the sediments downward, with rate depending on the slope of the place.Water erosion utilizes water to carry sediments away. Shoreline erosion occurs through the currents and waves of the water and also tides in both exposed and sheltered shores.Ice erosion wears away sediments with debris under glaciers similar to sandpaper on wood in a process called abrasion.ravity erosion drives the sediments downward, with rate depending on the slope of the place. Water erosion utilizes water to carry sediments away. Shoreline erosion occurs through the currents and waves of the water and also tides in both exposed and sheltered shores.