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.(4 points)
Weathering is the process by which rocks and landforms are broken down into smaller fragments due to the action of elements such as water, wind, and temperature changes. Over time, this fragmentation weakens the rock structure and creates openings and cracks. Erosion, on the other hand, involves the transportation of these weathered fragments by agents such as wind, water, and ice. In the case of sea arches, weathering weakens the coastal cliffs, causing the formation of cracks and cavities. Erosion then wears away the weakened rock, creating a hole or arch through which waves can pass. In the case of sea stacks, weathering and erosion contribute to the formation of an isolated pillar of rock. Weathering weakens the coastal cliffs, forming steep rocky outcrops. Erosion then wears away the surrounding rock, leaving behind a freestanding stack.
Weathering is the process of breaking down rocks and minerals on the Earth's surface. In the case of sea arches and sea stacks, mechanical weathering plays a significant role. Wave action, combined with the constant force of water against the rock, causes the weakened and fractured parts of the rock to break apart. Erosion, on the other hand, is the process of transporting sediment and rock fragments away from their origin. The constant pounding of waves against the rock disintegrates the weaker parts and carries away the sediment, leaving behind unique coastal landforms like sea arches and sea stacks.
Weathering is the process by which rocks and landforms are broken down into smaller pieces due to exposure to elements such as sunlight, wind, and water. In the case of sea arches and sea stacks, weathering plays a crucial role in their formation. Over time, the constant pounding of waves against the cliffs causes the rocks to weaken and break apart. Erosion then comes into play as the waves carry away the smaller rock fragments, gradually carving out a sea arch from the headland. The remaining stack is a result of further erosion, where the base of the arch collapses due to continuous wave action. Thus, weathering and erosion collaborate to shape and sculpt these distinct landforms.
