i really don't now why
rising molten magma
Geothermal Drift.
The primary force that causes the seafloor to spread and continents to drift is plate tectonics. This process is driven by the movement of molten rock in the Earth's mantle, which generates forces that push apart tectonic plates, leading to seafloor spreading and continental drift.
thermal convection
the primary force that causes the seaffloor to spread and contienents to drift
Some other part of the crust must be "disappearing" (subduction).
The primary force driving seafloor spreading and continental drift is mantle convection. Heat from Earth's core causes the mantle to circulate, creating convection currents that move tectonic plates, leading to the spreading of the seafloor and movement of continents.
no magma riseing thur gaps in plate causes them to move called seafloor spread
Seafloor spreading typically occurs at rates between 2.5 to 10 centimeters per year. However, in some places such as the East Pacific Rise, spreading can happen much faster, up to 15 centimeters per year.
In the middle of the ocean is a rift where the ocean floor squeezes out lava and pushes the ocean plates apart.
Seafloor spreading happens when two tectonic plates move apart. Magma rises up from the mantle through the gap, creating new oceanic crust. As the plates continue to move apart, the new crust pushes the older crust away, causing the seafloor to spread.
Seafloor Spreading