Quiz 6 Flashcards
(15 cards)
True or False: Deserts never occur along coastlines
False
Dry,sinking air results in many of the world’s deserts being located at ___ south and north latitutdes
30 degrees
Any region that receives less than ____ centimeters of rain per year and supports little or no vegetation is a desert
25 centimeters
Death Valley is part of a vast desert region of the American West with no external drainage, known as _____
the “Great Basin Desert”
A ______ is a continuous cover of closely packed pebbles and cobbles left behind when wind erodes smaller particles of sand and silt
Desert Pavement
The growth of a desert by human mismanagement or by climate change is called
desertification
The desert region that covers portions of Utah, Colorado, Arizona, and New Mexico is known as
colorado plateau
In africa, desertification caused by the ____ desert to expand in the Sahel region
Sahara
Vast tropical forests grow near the equator because
rising equatorial air cools and condenses as rain
Large desert rivers, like the Nile River, receive most of their water from:
wetter, mountainous areas bordering the arid lands
Which of the following is a rain shadow desert
Death Valley
The silt that comprises the loess deposits of North America’s central plains was
generatedby continental ice sheets that ground bedrock into silt
True or false: The Great Basin is an example of a coastal desert
False
True or False: In the Great Basin of the western United States, sediment accumulates because streams flow into the valleys from surrounding mountains, but no streams flow out of the basin
True
True or false: When moisture laden air flows over a mountain range, it cools and loses its ability to hold moisture
True
