Chapter 8

The downslope moment of soil and weathered rock resulting from the force of gravity is called ___?

Because few places on Earth are completely _____, almost all of Earth’s surface undergoes mass movement.

The Earth materials that are moved range in ____ from fine-grained mud to large boulders.

The slow, steady, downhill slow of loose, weathered Earth materials, especially soils, is a _____?

____ that is usually occurs in regions of permafrost, or permanently frozen soil, is called ____?

Earth flows are moderately slow movements of soils, whereas ____ are swiftly moving mixtures of mud and water.

A _____ is a type of _____ that occurs after a volcanic eruption.

Material rapidly slides downslope as one block, with little internal _____.

A _____ slide is a type of landslide that occurs when a sheet of rock moves downhill on a sliding surface.

Often triggered by ____, rockslides can move large amounts of material.

When the mass of material in a landslide moves along a curved surface, a (crack) results.

The weight of the additional (water) pulls material downhill.

About (79,000) avalanches occur each year in the mountains of the western U.S.

On (human-made) rock walls, rich as road cuts, rockfalls are particularly common.

Poor maintenance of (septic systems), which often leak, can trigger slides.

What is abrasion?

How does abrasion occur?

What is a dune?

When does wind deposition occur?

Give an example of a dune (there are 4 answers, list 1).