PLATE tECtonics
PLATE TECTONIC: it is a theory that says that the earths crust moves away from each other or towards each other
continental drift
continental drift: it is a theory the explains that all of our continents were separated by the tectonic plates to there present locations right now
pangea
PANGEA: it was once a large landmass of all of our continents until they got separated
Asthenosphere
asthenospher: it is the upper level of the mantel
Lithosphere
lithosphere: the ridge outer part of the earths crust
Mid-Oceanic ridge
Mid-Oceanic ridge: a long under water mountain ridge
Rift valleys
rift valleys: A rift valley is a linear-shaped lowland between several highlands or mountain ranges
Subduction
Subduction: when a plate goes under another plate and goes into the mantel