Exam 21: Dry Regions: the Geology of Deserts

The definition of a desert depends on a region's ________.

Compared with humid climates,the rates of chemical weathering in deserts are ________.

Native Americans produced petroglyphs by etching into ________.

Examine the images of the Aral Sea below.What happened and why?

In the figure below,the sand grains are being transported by ________.

As shown in the figure below,wind erosion can create a faceted rock known as a ________.

What is a desert? Explain how a desert could be formed at one of the poles.

What is the dominant erosional force in deserts: wind or water? Why?

After extensive erosion of a hill in a desert environment,the small remnant surrounded by alluvium-filled basins is known as a(n)________.

Evaporite deposits in coastal,subtropical regions derived from the evaporation of seawater stranded above high tide are termed ________.

Label the image below with the name of the type of sand dune shown.

Which of the following hazards could lead to desertification?

The deserts found in the western United States are primarily the result of being located ________.

According to the textbook,the highest recorded temperature on the Earth was in a ________.

Illustrate how a rain-shadow desert might form.

What is desert varnish? How does it form? Why doesn't one find desert varnish in humid climates?

A desert may form along a coastline because a ________.

The saltation of sand involves ________.

Over time,alluvial fans may merge to form a ________.

An apron-shaped pile of alluvium that forms at the mouth of a canyon is known as a(n)________.