The ocean crust
A) becomes progressively younger away from the mid-ocean ridges.
B) is the same age worldwide.
C) becomes progressively older away from the mid-ocean ridge.
D) ranges in age, the oldest ocean crust is in the Atlantic and the youngest is in the Arctic.
Question 2
The rate of seafloor spreading can be calculated by
A) the magnetic pattern generated at the ocean floor.
B) knowing the dates for magnetic pole reversals, and the distance from the location of a known reversal site to the ocean ridge.
C) looking at the magnetic tape recording of the ocean floor.
D) the rate of seafloor spreading cannot be calculated.