You're a click away from everything you need for your home service. Learn more about your bill and how to pay. Learn how to save energy around your home. Check out our programs and get up-to-speed with storm preparedness and safety.
After weathering has broken some of the pieces of of a rock or a object erosions part comes in. Erosion carries the pieces to another place and the pieces start to form anotheâ¦r object leaving the other object with a cool shape such the grand canyon. 23 people found this useful.
Quick Answer. Rift valleys form when tectonic forces deep underground exert a pulling force on the terrain. In areas where this occurs, the land splits into a steep-walled valley with a flat floor. Rift valleys can be very narrow, especially early in their formation.