It is indeed A, all of the other answers would be examples of how not to conserve non-renewable resources
<span>b.proteins and nucleic acids
Major chromosome components are DNA (nucleic acids) and histones (proteins)</span>
Answer:
by looking at their physical features, the fossil record, and dna sequences
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 :( )
Answer:
by suckshining the infant
Explanation: