Answer:
Okay so i included a picture to help you understand a bit more.
Scientist use these charts and date or rock to further their evidence in Evolution.
The dipper you dig the further i back in time you will see and discover....
Think about it when you make a layered cake you wont put the newer Hotter layer on the bottom it can make the rest of the cake fall and it doesn't make no sense. So as for C This layer is much older than Layers m,h,e and a.
