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Lesson 2: Brian Pop Erosion
By Maureen Lynch
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Last updated about 6 years ago
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Question 1
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What type of changes does erosion cause?
physical change
Chemical change
electrical changes
magnetic changes
Erosion occurs when natural forces alter the landscape. What does it mean to alter a landscape?
to blow dust around
to change what the land looks like
to create a flood
to create a hurricane
Which term best describes the rate at which glacial erosion takes place?
quick
ephemeral
slow
suddenly
How do sandy beaches form?
waves crashing on rocks to make smaller and smaller pieces
wind eroding rocks into smaller pieces
water freezing and then melting and breaking the rocks into pieces
rain making rocks into smaller and smaller pieces
Which of the following features would be most affected by weathering?
A
B
C
D
Why is it hard to see glacial erosion in action?
because glaciers are so big
because light from glaciers refract too much
because glaciers move very very slow
because glacier erosions can be very subtle
What do floodplains, sandbars, and river deltas have in common?
they all have been formed by water erosion
They have all been formed by glacier erosion
they have all been formed by wind erosion
they have all be formed by sandblasting
Based on the information presented in the movie, what would be a simple way to prevent erosion?
blocking the wind
planting a tree
preventing rainfall
preventing the flow of rivers
Based on the information presented in the movie, what can you infer about the type of erosion that formed the Grand Canyon?
wind erosion
water erosion
sand blasting
glacier erosion