Are you referring to plate tectonics whichI believe is more than a theory. At one time all the continents were together in a land mass called Pangea. Sea floor spreading caused them to separate forming the present continents which generally look like a jig-saw puzzle you can put together. It was Alfred Wagner, a German, who first pointed this out in 1911 though the reason s were not known at the time.
The theory of Plate Tectonics. Which is now accepted as a fact, not a theory.
Plate Tectonics
plate tectonics
Mantle
The movement of crustal or lithospheric plates is a part of the theory of plate tectonics.
Earths outermost layer is the crust.Actually, the crust is divided into two parts,Sial and Sima.In that way, actually Sial is the outermost layer of the crust,as it lies above the Sima.
eartsh landforms are constantly changing.rocks in earths crust are slowly being broken into smaller pieces in a process called weathering.water,ice,temperature changes,chemicals,and living things cause weathering.there are two types of weathering,physical weathering and chemical weathering.
Physical samples of rock extracted (taken) from deep within Earths crust.
Just to say: This question refers to rock groups. Not what type of rock.Igneous rocks make up most of the earth's crust.
The crust.
earth's crust is broken in 12 pieces that constantly moves
why do pieces of earths earliest crust not exist today
what what
The movement of crustal or lithospheric plates is a part of the theory of plate tectonics. The geological theory is called plate tectonics.
The movement of crustal or lithospheric plates is a part of the theory of plate tectonics. The geological theory is called plate tectonics.
Contenintal Drift theory
earth's crust
plate tectonics
The movement of crustal or lithospheric plates is a part of the theory of plate tectonics. The geological theory is called plate tectonics.
The movement of crustal or lithospheric plates is a part of the theory of plate tectonics. The geological theory is called plate tectonics.
The movement of crustal or lithospheric plates is a part of the theory of plate tectonics. The geological theory is called plate tectonics.