I think the answer is "the older it is"
Reason: I might be wrong but is something (like a shell) gets buried in something (like sand), overtime many things (like dirt, soil, sand, etc.) will be on top of the original. This will make layers. So, the older rock is on the bottom since it has been there for the longest and it gets covered by other stuff (causing the layers).
Hope this helps! :) (If I'm wrong, sorry :( )
What's the overhead of a pharmacy in a year that it pays $474,900 in salaries, $24,000 in rental fees, $31,505 for utilities, $126,000 in inventory costs, $7,005 in computer system repairs, and has a depreciation rate of $12,110? a) $549,520 b) $675,520 c) $510,505 d) $644,015
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy!
