The main way that the wind erodes the land is by the process of ____________________.
answer
deflation
question
Describe the processes of deflation.
answer
As wind blows over the ground it picks up small particles of sediment in the process of deflation.
question
Identify the two types of wind erosion.
answer
Abrasion and deflation
question
What are two features that form though wind deposition?
answer
Sand dunes and loess deposits form through wind deposition.
question
Loess is sediment made up of fine particles of silt that have been deposited far from their source by ____________________.
answer
wind
question
The stronger the wind, the larger the particles it _____________ (deposits/erodes).
answer
erodes
question
Describe how the size of sediment particles affects their movement during deflation.
answer
The more energy that wind has, the larger particles of sediment it can move. In general, small, fine particles can be picked up and blown through the air. Medium sized particles bounce and skip along the ground. And large particles slide and roll along the ground.
question
Wind is the ____________ (strongest/weakest) agent of erosion.
answer
weakest
question
Explain the formation and movement of sand dunes.
answer
When wind carrying sand slows down or is trapped by some obstacle, such as a boulder or plant, the sand gets deposited. As the sand accumulates, a sand dune can form. Dunes often form on beaches or in deserts. Sand dunes move over time as, little by little, sand grains get moved by the wind from one side of the dune to the other.
question
Sand dunes are formed by ____________ (deflation/deposition).
answer
deposition
question
The weakest agent of erosion
a.
water
c.
chemical weathering
b.
heat
d.
wind
answer
D. Wind
question
The process by which wind removes surface materials is called
a.
abrasion.
b.
plucking.
c.
deflation.
d.
inflation.
answer
C. Deflation
question
Process by which sand dunes are formed
answer
deposition
question
Stronger wind can carry larger particles of sediment.
T/F
answer
TRUE
question
Abrasion can polish rock surfaces.
T/F
answer
TRUE
question
Particles of clay and silt eroded and deposited by the wind are called
a.
till.
b.
loess.
c.
dust.
d.
sod.
answer
B. Loess
question
The stronger the wind, the larger the particles it erodes.
T/F
answer
TRUE
question
Which of the following processes is a type of wind erosion?
a.
plucking
b.
abrasion
c.
inflation
d.
chemical weathering
answer
B. Abrasion
question
Wind causes erosion though ablation and abrasion.
T/F
answer
FALSE
question
Wind carrying sand grains deposits the sand when the wind
a.
speeds up.
b.
crosses a depression in the ground.
c.
slows down or hits an obstacle.
d.
cools after nightfall.
answer
C. slows down or hits an object.
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