Answer:
ocean basalts
Explanation:
As the sea floor slowly spreads, the igneous rock(ocean basalts) of which it is comprised cools and congeals, recording the earth's current magnetic pole alignment.
Answer:
A) sulfur - 32
Explanation:
In periodic table you can see that S has average atomic mass = 32.06
It is closest to 32, that means that most of the atoms are isotopes sulfur-32.