Exam 18: The Topography of Arid Lands

Where the landscape is covered by sand and the crests of the sand dunes are perpendicular to the wind, the dunes are labeled ________.

A gently inclined bedrock platform is a(n) ________.

Lakebeds are uncommon in desert areas.

________ is a shiny coating that forms on the outside of rocks and pebbles.

Which of the following is the same thing as an arroyo or gulley?

Death Valley was formerly occupied by glacial Lake Bonneville.

Rivers like the Nile or Colorado which rise in moist regions and then flow through arid landscapes are called ________ streams.

Great vertical escarpments are associated with ________ of sedimentary strata in desert climates.

In arid regions, differential erosion tends to be best developed in areas of ________.

Another term for "wadi" is ________.

"Dust Bowl" conditions in the North American Great Plains of the 1930s represented ________.

Currently, the valley floor of Death Valley ________.

Which of the following is NOT a specialized feature of desert environments?

The Great Salt Lake is a remnant of ________.

In the creation of rock escarpments in dry lands, much of the undermining is accomplished by a process called ________.

The process of shifting loose particles by blowing them into the air or rolling them on the ground is called ________.

A shallow depression from which an abundance of fine material has been deflated is known as a deflation hollow or ________.

In arid lands, the flows of exotic rivers ________ with increasing distance towards the mouth.

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

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