There Are Distinct Differences Between Compression Marks and Scraping Marks

There are distinct differences between compression marks and scraping marks. The ________________or striated marks are produced by a combination of pressure and sliding contact by the tool and result in microscopic striations imparted to the surface onto which the tool was worked. Examples include scrape marks on fired bullets, marks left by cutting tools such as bolt cutters, from a wrench used on a doorknob, from an ax used to cut wood, from a screwdriver blade dragged over a surface.

A) Compression
B) Scraping