Question

When rocks are analyzed over an increasingly greater distance from a mid ocean ridge what can be said about the polarities of the rocks?

A. They are constant

B. They alternate once

C. They alternate multiple times

Answer 1

The answer is C. They alternate multiple times.

Answer 2

Answer:

C. They alternate multiple times

Explanation:

When rocks are analyzed over an increasingly greater distance from a mid ocean ridge the polarities of the rocks alternate multiples times. Rocks and minerals record  orientation of magnetic field of the Earth since the time they solidify. Periods when the north magnetic pole is located near Earth's South Pole are called reversed polarity.