an earthquake
Fault
rift valley
where 2 plates collide and form one.
Mountains.
When the plates collide they form volcanoes and earthquakes.
Is form when two plates collide; is caused by the force pushing against each other (the plates).
Collide.
eigther volcanoes or mountains
If two plates were to collide they would either go up over the surface and form a volcano, or they would collide and go downward forming a trench or a large crevice.
When the two plates collide, they fold. causing both plates to move upwards trying to get around one another. Over time when the plates move upwards, mountains form. This is exactly how Everest was formed.
A mountain
Collide without subduction.