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What Controls the Shape and Motion of Sand Dunes?
Where Did This Sand Come From?
How Do Storms Affect Coastlines?
What Are the Costs and Benefits of Damming a River?
Observe an animation showing the formation of an arch.
Observe the formation of loess deposits.
Observe an animation of wave motion.
Observe waves as they break on the shore.
Examine an example of wave erosion.
Learn more about dust storms.
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Local Resources for Unit 4