Question

Magnetic reversals _____.

Answer 1

Magnetic reversal is a change in the Earth's magnetic field resulting in the magnetic north being aligned with the south, and vise versa. This also supports the sea floor spreading idea. 

Answer 2

Results when the shafts of the Earth flip. The iron-rich outer core creates the Earth's magnetic field. This field isn't connected. In the past, the polarity of the Earth's magnetic field has converted, many times over.

Explanation:

This was discovered in individuals of the defenses of the seashore floor at mid-ocean elevations, where matching designs of magnetic polarity were perceived on each side of the mid-ocean backbone.