Exam 16: Unsafe Ground: Landslides and Other Mass Movements

Slope stability is determined by which two forces?

Well-rounded sand has a larger angle of repose than irregularly shaped gravel.

Which of the following types of mass movement is least coherent (most like a liquid)?

For dry sediments,the angle of repose is typically between ____________ and ____________ degrees.

In cold,dry,mountainous climate,rock glaciers consisting of rocks held together by a smaller volume of ice can slide down slopes.

Mass wasting always involves a sudden movement of material downslope.

____________ may help prevent stabilize slopes to prevent mass wasting.

The immediate cause of incidents of mass movement is ____________.

The principle difference between a lahar and a mudflow is the ____________.

Tectonic activity destabilizes the ground.