Exam 15: Preliminaries to Erosion: Weathering and Mass Wasting

Undercutting of a bank by its stream may trigger ________.

Mechanical and chemical weathering usually work together.

The main downslope movement of subarctic and arctic landscapes is ________.

The main chemical weathering processes all take place more or less simultaneously because they all require the presence of ________.

A weathering type associated with curved and concentric sets of joints that break away in successive layers is called ________.

Which of the following mass movements involves the greatest amount of water?

When fragments deposited by mass movement are at the ________, they are in a fine balance between the pull of gravity and the cohesion and friction of the rock material.

From a chemical standpoint, the three reacting agents of greatest importance to weathering are ________.

Weathering is deepest ________.

Which of the following is NOT associated with biological weathering?

Mudflows tend to follow the local drainage network.

Mass wasting and weathering are synonymous terms.

The general term signifying the overall lowering of the rock material on the Earth's crust is ________.

The rotting of rock by the various types of chemical weathering takes place best in ________.

Typically, solifluction lobes move a few ________ per year.

A slope collapse with a backward rotation is a ________.

Within 5 percent, the typical angle of repose on talus is ________ percent.

Which of the following must take place FIRST during the denudation of a landscape?

Explain how salt wedging and frost wedging are alike and unalike.

Mass movements are likely to occur after _______.