Chapter 19

Question 0

Global atmospheric circulation tends to produce arid areas at:

Answer 0

30* latitude

Question 1

A desert:

Answer 1

receives less than 25 cm of rain per year.

Question 2

A Hadley cell:

Answer 2

Develops between the equator and about 30* latitude.

Question 3

The orographic effect is:

Answer 3

When a mtn range forces moisture to rise and condense, creating a rain shadow.

Question 4

The principal types of deserts include:

Answer 4

trade wind deserts and monsoon deserts.

Question 5

A barchan dune is identifiable because:

Answer 5

Is is crescent shape and the horns point downward.

Question 6

An erg is:

Answer 6

The Arabic name for a sand sea.

Question 7

Sediment transport:

Answer 7

All of the choices are correct.

Question 8

Why are there no important loess deposits in Africa?

Answer 8

There were no continental glaciers in Africa.

Question 9

Sand ripples migrate by:

Answer 9

Sand moving the stoss slope and avalanching down the lee slope.

Question 10

Star dunes:

Answer 10

All of the choices are correct.

Question 11

Water in a desert:

Answer 11

Is the primary agent shaping desert landforms.

Question 12

Loess:

Answer 12

Is windblown silt that accumulates in thick soil.

Question 13

A ______ is formed when wind removes finer sediments, leaving behind a layer of coarse sediments.

Answer 13

Pavement

Question 14

Desertification is:

Answer 14

Typically related to climate change and/or poor land management.