I'm assuming it would be Population Density. My class never covered this subject greatly, but the definition is "Population density is a measurement of population per unit area or unit volume;" which sounds like what you are looking for.
Hope this helps!
-Payshence
A metamorphic rock is most likely to form in an earthquake zone.
Answer:
Met - Pro - Val
Explanation:
Using translation table we can see that
AUG gives Met
CCC gives Pro
GUC gives Val.
So, we have Met - Pro - Val.