| A | B |
|---|
| friction | force that opposes the motion of an object when it is in contact with another object |
| deflation | occurs when wind blows over loose sediments, removes small particles and leaves coarser sediments behind |
| abrasion | occurs when windblown sediments strike rocks polishing and pitting the surface |
| loess | windblown deposit of tightly packed, finegrained sediments |
| dune | mound formed when windblown sediments pile up behind an obstacle |
| windbreaks | Trees planted along a field to protect crops |
| 2 ways to prevent wind erosion | Wind breaks and roots |
| Which direction do sand dunes migrate? | away from the direction of the wind |
| Christmas dunes | sand collects and covers old Christmans trees |
