Which statement describes John Tuzo Wilson’s contribution to the theory of plate tectonics? He proposed that plates carry parts of the seafloor.
He theorized that pieces of Earth move for a limited time.
He suggested that the asthenosphere is broken into segments.
He observed seafloor cracks similar to existing cracks in the continents.

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.