Magnetostratigraphy Takes Advantage of the Fact That the Earth's Magnetic

Multiple Choice

Magnetostratigraphy takes advantage of the fact that the Earth's magnetic field

A) only arose 10,000 years ago.
B) has been uniformly strong,with constant polarity,throughout the Earth's history.
C) has experienced numerous polarity reversals,with periods of normal and reversed polarity of varying lengths.
D) has experienced numerous regular,predictable polarity reversals.