Exam 18: Deserts and Winds

________ windward air masses rise up mountain slopes and deliver moisture to mountaintops while ________ leeward masses descend into rainshadow areas on the other side.

How far can dust blown from the Sahara desert be transported?

Refer to the world drylands map (fig.18.2)and the atmospheric circulation diagram (fig.18.3A)to answer the question(s)below. -Which desert occupies Uzbekistan and Kazakhstan in central Asia and what is its cause?

________ are rocks with one or more flat surfaces abraded by windblown sand.

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

In dry lands, ________ is the covering of coarse particles left on the surface after the finer particles are carried away by wind and running water.

The steeper lee slope of a sand dune is called the slip face.

The loess in western China was derived from windblown, glacial silt and rock flour.

Where are the thickest deposits of loess found?

Why do most desert streams not travel far?

At an annual average of 20 degrees Celsius, what is the maximum summer rainfall for a dry climate?

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

Where do the low-latitude deserts tend to occur?

Which one of the following will effectively limit further deflation in a desert area?

What do barchan and parabolic dunes have in common?

Assume that the central slip face of a barchan dune slopes downhill toward the east.What is the direction of the prevailing wind?

Saltation refers to evaporation of shallow, muddy waters from a playa lake.

What is the source of the water that maintains desert rivers like the Nile, Colorado, or Syr Darya?

How is desert pavement formed?

Which exerts the greatest amount of erosion and sculpting of landforms in deserts?