Exam 18: The Topography of Arid Lands

________ is a notable characteristic of mesa-and-scarp topography.

Why is loess such an important aeolian deposit on Earth?

A(n) ________ is a desert which is covered with coarse gravel, pebbles, and boulders and from which all sand and dust have been removed.

In the desert, lack of water causes thick coverings of regolith in most locations.

In basin and range topography, the lowest areas are frequently occupied by a(n) ________.

Weathering is faster in deserts than in other environments.

Mechanical weathering is dominant in arid landscapes.

Flattish erosional platforms with no well-defined scarps or edges are ________.

In the Sahel, desertification is likely to continue because of ________.

Why do desert slopes tend to be steeper than slopes of humid regions?

Of the list below, which is the only landform that has depositional origins?

After the Sahara, which of the following is the world's major location of ergs?

Lakebeds are uncommon in desert areas.

In the center of a desert basin, what would one likely find?

The Sahel is in the central portion of the Sahara.

During recent geologic time, Death Valley was occupied by a large lake called ________.

A pediment is the same thing as a piedmont slope.

Much loess deposition in eastern Asia resulted from deflation.

Approximately ________ percent of the coterminous United States is covered by loess.

Stream channels in desert areas tend to be deeply incised.