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Are valleys formed your erosion or weathering?

Valleys can be formed by a combination of erosion and weathering. Erosion, which is the process of wearing away rock and soil, contributes to the shaping of valleys by moving sediment and carving out the land. Weathering breaks down rocks and contributes to the gradual formation of valleys over time.


What are flooded glacial valleys?

Flooded glacial valleys are valleys carved out by glaciers during the last Ice Age which are now submerged under water. These valleys can form deep fjords, where seawater has filled in the glacially-carved depressions. Examples include the fjords of Norway and Alaska.


What of the agents of erosion forms U-shaped valleys?

Glaciers are the agents of erosion that form U-shaped valleys. As they move downhill, glaciers carve out wide, deep valleys with smooth, U-shaped profiles, distinct from the V-shaped valleys carved by rivers. This process, known as glacial erosion, is a key feature of glaciated mountain landscapes.


What inference explains the existence of the ridges and valleys of the Newark lowlands?

The ridges and valleys of the Newark lowlands are likely the result of past glacial activity and erosion. During the Pleistocene epoch, glaciers advanced and retreated multiple times over the region, carving out valleys and depositing sediment to form ridges. Subsequent erosion by water and ice further shaped the landscape into its current form.


What do rift valleys form?

Rift valleys form due to the separation of tectonic plates, causing the Earth's crust to crack and sink, creating a long, narrow valley. This process is associated with the movement of the Earth's lithosphere and can lead to the formation of new ocean basins over time.