Question | Answer |
---|---|
Continental drift | Is the hypothis that states that the continents once formed a single landmass |
Pangaea | A single giant continent, Wagner thought broke apart, then drifted to their present location |
Sea floor spreading | Is the process by which new ocean lithosphere forms as magma rises toward the serface and solidifies. |
Plate tectonics | Is the the theory that the eartha??s lithosphere is divided into tectonic plates. |
Convergent boundary | When two tectonic plates collide. |
Divergent boundary | When two tectonic plates separate |
Transforming boundary | When tectonic plates slide pass each other |
Covection currents | Hot circules |
Wegener | |
The man who came up with Pangea and plate tectonics | |
Volcano | Areas of the eartha??s surface through which magma and volcanic gases pass |
Hot spots | Are volcanically active places on the eartha??s surface that are far from plate boundaries |
Mid ocean ridges | Under water mountain chains that run through the eartha??s ocean basins |
Subduction | When rock becomes cool and more dense it sinks |
Vent | An opening at the surface of the earth through which volcanic material passes through |
Plate tectonics