Sea arches and sea stacks provide evidence of weathering and erosion. In three to five sentences, explain the roles weathering and erosion play in creating these landforms and how deposition is involved in shaping the shorelines.(4 points).

Answer 1

Weathering and erosion are key processes in the formation of sea arches and sea stacks, which are created by the relentless action of waves on coastal rock formations. Erosion occurs as waves crash against the rock, gradually wearing it away and creating openings and caves, which can eventually connect to form arches. If the arch collapses, it can leave behind isolated columns of rock known as sea stacks. Meanwhile, deposition plays a significant role in shaping shorelines by accumulating sediment in areas where wave energy is reduced, leading to the formation of features like beaches and sandbars that can influence the coastal landscape. Together, these processes continually reshape coastal environments, highlighting the dynamic interplay between erosion and deposition.