At a constructive plate boundary two plates move apart. As they move apart the magma from the magma chamber flows up to fill the gap. This causes a volcano. However, as the magma can escape easily it flows down the volcano with only a little bit of force. So it has a gentle erupt.
subduction
island arc
Nothing go look at the west of virgina
constructive
The two halves would move in different directions.
The Appalachian Mountains were formed in a Constructive Force
constructive
constructive.
Constructive Force is something thats CONSTRUCTIVE
constructive
constructive
The crust is compressed into mountains (if it is continental crust) or subducted back into the mantle if it is oceanic crust.