Exam 18: The Topography of Arid Lands

A deflation hollow is an example of aeolian erosion.

Dunes are rarely associated with vegetation.

It is now clear that desertification is ________.

The Nile River ________.

The main dune form in most deserts is crescent shaped and is migrating across a non-sand surface; it is called a(n) ________.

________ represents the largest region with continuing desertification.

Which is NOT a regional name for a wash or gully?

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

Bornhardts are ________.

Desert stream channels contain plentiful rock debris.

Which of the following is NOT closely associated with basin-and-range topography?

The ________ is a depositional feature that accumulates at the mouths of desert canyons.

Many of today's desert lakes are NOT described by which phrase?

Why is the "four-corners country" of the United States dominated by the mesa-and-scarp landscape assemblage?

________ is the primary agent that anchors sand dunes to prevent their migration.

Fluvial depositional features are common in desert regions.

In deserts, wind can be said to ________.

Rounded hills or mountain prominence surrounded by extensive plains and basins are ________.

A bedrock surface resistant to erosion overlying a bedrock surface less resistant to erosion will help create meas-and-scarp topography. The resistant bedrock surface is a ________.

Africa's best example of an exotic river is the ________.