Because one might have other minerals in it as well
Is this geometry? if so is there a picture i can look at to help you?
Answer:
The leader's child could be unwanted, unprepared, or not even wanting to be the leader. So instead voting would be much more accurate because there's a better percent that people will be satisfied.
At 180 degrees longitude, the International date line represents the point at which the eastern and western hemispheres experience different days.
