GEOLOGY

Detailed explanation-1: -Most erosion is performed by liquid water, wind, or ice (usually in the form of a glacier). If the wind is dusty, or water or glacial ice is muddy, erosion is taking place.

Detailed explanation-2: -► Weathering and Erosion Weathering and erosion are geologic processes that shape Earth’s landforms over vast periods of time through the actions of water, wind, ice, and gravity.

Detailed explanation-3: -Weathering and erosion can cause changes to the shape, size, and texture of different landforms (such as mountains, riverbeds, beaches, etc). Weathering and erosion can also play a role in landslides and the formation of new landforms.

Detailed explanation-4: -The process continues today. Weathering wears mountains down to hills, as shown in Figure 1. Rocks at the top of mountains are broken down by weathering, and the sediment is moved downhill by gravity, water, and ice. Weathering also produces strange rock formations like those shown at the beginning of this chapter.