by the plate tectonic and the ocean bridges
The spreading of the sea floor.
no
Spredading of tectonic plates causes Tsunamis, Earthquakes, Volcanic erruptions, etc.
By tectonic plates spreading across from which was first known as Pangaea is now spreading more and more out which forms more tectonic islands!
No. When tectonic plates move away from each other they can cause an ocean to spread.
When the plates drift apart through sea floor spreading, so do the continents
it's when tectonic plates split and magma comes up through the separation of the tectonic plates and build new crust
Spreading of tectonic plates - which fresh magma fills in.
Spreading of tectonic plates - which fresh magma fills in.
SPREADING ZONES Spreading zone occurs in the border of two tectonic plates. This happens when the plates generally move away from each other creating an opening for the magma to force through the surface.
They are called tectonic or lithospheric plates.
tectonic plates move apart allowing magma to move to the surface.