When the surface of solid materials scrape and grind against each other it is called ?

What school are you from and what state are you from?

In wegener’s evidence for continental drift, continents were proposed to fit together, such as the east coast of south america with the west coast of europe. east coast of africa. west coast of greenland. lower west coast of africa.

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.