what plate boundary causes two plates to move away from each other
Divergent Boundary. The first way two cars can move relative to each other is in divergent directions, like passing a car going the other way. Plates also can pull apart from each other. This is known as a divergent boundary. A divergent boundary is a fault where the two plates are moving away from each other. Rift valleys develop when a continent is broken apart by a divergent boundary. Now, as plates pull apart, several things may occur.