Plate tectonics: PLATE TECHTONICS ARE PLATES OF THE LITHOSPHERE IT MOVES AND CHANGE SHAPE
continental drift: movement of the continets
Pangaea:a large body of land that used to exist until they shifted apart.
Asthenosphere:the solid plastic layer of the mantle.
Lithosphere:the solid outer layer of earth consist of the crust.
Mid-Oceanic ridge: a log undersea chain that contian a steep valley.
Rift valleys: valleys caused by mountain spliting.
Subduction:when plate techtonics slide underneath each other.