The pangaea theory supports the theory of plate tectonics because

a. it is based on the idea that there were several land masses when earth was first created

b. it is based on the idea that all the present continents were one supercontinent

c. it does not require scientists to support the notion that earth's plates can move

d. one day, earth will have one large land mass again

the answer is crop rotation

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.