Deflation
the process by which wind removes surface materials
Sand Dune
a deposit of wind-blown sand
Loess
a wind-formed deposit made of fine particles of clay and silt
What causes wind to deposit sand or other sediment?
Wind deposits sediment when it slows or meets an obstacle
The process by which wind removes surface material is ___.
deflation
Fine sediment deposited by wind is ___.
loess
A deposit of windblow sand is called a ___.
sand dune
What is desert pavement?
an area of rock fragments exposed by wind
What makes up loess?
clay and silt
What happens when wind slows down or meets an obstacle?
deposition
When wind blows over land, it picks up the ___ particle of sediment.
smallest
Loess helps to form ___ soil.
fertile
Abrasion by wind-carried sand causes ___ erosion.
little
Plant roots do ____ to anchor sand dunes in one place.
help
the shape of a sand dune is determined by the ___ of the wind.
direction
The ___ the wind, the larger the particles that it can pick up.
stronger
Loess is sediment made up of fine particles of silt that have been deposited far from their source by ___
wind