Destructive Underwater, plate colliding may cause one to be "subducted" or dragged under the other. Molten rock can then make its way to the surface and form volcanoes. On the continents, the land buckles up into fold mountains. 1. Mountain Ranges - Mount Everest and the Himalayas 2. Volcanoes - Mount Fujiyama (Japan)
Conservative Plates slide past each other with minimal destruction and no new land being formed. Sticking of plates, followed by the release of tension in the form of strong earthquakes is characteristic of these areas 1. Fault lines -San Andreas Fault, (USA) 2. Powerful earthquakes - Trinidad (the boundary between South America and Caribbean Plates)
Constructive Plates moving apart underwater cause magma to rise up and fill the space, creating new land. On dry land deep wide valleys form. 1. Mid-ocean ridges - Mid-Atlantic Ocean ridge 2. Rift Valleys - East African Rift Valley