Erosion by Gravity

The bent trees are indications of

• soil creep

• earthflow

• mudflow

• rockslide

The picture shows what type of mass movement?

• mudflow

• earthflow

• slump

• soil creep

The dominant force behind all erosion is

• gravity

• water

• wind

• glaciers

An avalanche is an example of which process?

• Weathering
• Erosion
• Deposition
• Volcanic Eruption

Which erosional force acts alone to produce avalanches?

• gravity

• sea waves

• winds

• running water

The steepest angle at which a particular sediment can remain stable on a slope

• angle of repose

• altitude of Polaris

• latitude

• sun angle

Invisibly slow downhill movement of soil that causes tilting of poles, fences or trees.

• soil creep

• earthflow

• rockfall

• mudflow

Shallow layer of soil and vegetation that is saturated with water and slowly slides downhill

• earthflow

• mudflow

• soil creep

• slump

Rapid downhill flow of rock, soil and water. Occurs after a heavy rainfall in dry mountainous areas

• mudflow

• earthflow

• soil creep

• rockslides

Huge masses of bedrock or soil that slide downward in one whole piece

• slump

• earthflow

• mudflow

• soil creep