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| A dry desert lake bed is a/an ____________________. |
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| Because Death Valley has no external drainage, the ____________________ eroded from surrounding mountains creates bajadas, pediments, and alluvial fans. |
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| Wind erosion, called ____________________, is a selective process in which the wind moves only small particles, such as silt and sand. |
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| Sand grains are transported by wind close to the ground in a bouncing movement called ____________________. |
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| The growth of a desert by human mismanagement is called ____________________. |
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Term
| Outside of the polar regions, the Earth's land surface is ____ desert. |
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| When a dry desert streambed suddenly fills with water during a rainstorm, this is called a/an ____ flood. |
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| ____ is a continuous cover of stones left behind when wind blows silt and sand away. |
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| Wind-scoured depressions are called ____. |
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| The leeward side of a dune is called the ____ face. |
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Term
| The largest loess deposits in the world are found in ____. |
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Definition
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| Human mismanagement can cause the conversion of semiarid land to arid land in a process called ____. |
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Definition
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Term
| Salt deposits are found on playas because: |
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Definition
| dissolved ions precipitate during evaporation of the playa lake water |
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Term
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Definition
| the dipping beds are the layering of the dunes slip face |
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Term
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Definition
| silt that has been transported and deposited by wind |
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Term
| T/F The sand on the slip face of a dune is loose compared to the windward face. |
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Definition
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| T/F Migrating dunes can overrun buildings and highways. |
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Definition
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Term
| A desert is defined as any region that receives less than ____ centimeters of rain per year. |
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Definition
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Term
| A/An ____________________ is a broad, gently sloping depositional surface formed by merging alluvial fans. |
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| T/F Rainfall patterns and deserts have no direct relationship to tectonic activity. |
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