Answer the following question given this paragraph: 

Did you ever see workers sandblasting a building to clean it? Sand is blown onto the surface to scour away dirt and debris. Wind-blown sand has the same effect. It scours and polishes rocks and other surfaces. Wind-blown sand may carve rocks into interesting shapes ( Figure below ). This form of erosion is called abrasion. It occurs any time rough sediments are blown or dragged over surfaces. Can you think of other ways abrasion might occur?.


Q: Sandblasting a surface exemplifies what form of erosion?

 Choices:

- wind

- glacial

- water

- abrasion

A:
abrasion
