Exam 9: Mass Wasting

In an earthflow soil moves downslope as a coherent mass.

If, over a period of time, your home develops doors that stick, cracked walls, broken pipes, and cracked driveways, ____ may be occurring.

The impermeable layer beneath saturated soil subject to solifluction may be ______.

If movement becomes very rapid, a rockslide may break up and become __.

A(n) _____ is a general term that tells nothing about the processes involved.

Much of the damage from China's Mary, 2008 earthquake was from ______.

A mudflow is a flowing mixture of soil and water usually moving down a channel.

Two factors that contribute significantly to soil creep are water in the soil and ___.

When soil is saturated with water ____ increases.

Relief is a term used to describe the horizontal distance between valley floor and mountain top.

Among techniques used to prevent rockfalls along highways is to _____.

In cold climates freezing and thawing contribute to downslope soil movement.

In a translational slide, the descending mass __.

Permafrost occurs at depths that range from a few centimeters to a few meters below the ground surface.

When soil is saturated with water it becomes heavier and less viscous and more likely to flow downslope.

Pore pressure refers to the effect in which water forces grains apart.

Mudflows generally contain __.

The Gros Ventre slide in 1925 generated a secondary hazard, namely __, whose failure was responsible for the destruction of the town of Kelly, Wyoming.

A region with high relief (the distance between high and low points in an area) has a ______ rate of debris flow.

______ is ground that remains frozen for many years.