Imagine that you are buying books one by one and then piling them up after reading them. which geologic concept could you use to identify the topmost book as the newest?

No because it not possibly

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

Answerstudying coal cumbustion as an energy source;