1.is a force between two surface that are sliding,or trying to slide, across each other
2.is a seismic structure that have not seen or experienced any earthquake activity in the past millions of years
3.long narrow hilltops, mountain ranges, or water sheds
4.the trees which squeezes rock
Answers & Comments
Answer:
1. Friction is a force between two surfaces that are sliding, or trying to slide, across each other. Friction always works in the direction opposite to the direction in which the object is moving, or trying to move.