Which term names the longest geologic time frame?

An Eon

Explanation:

epcohs are the shortest geologic time frame, which make up periods, that make up eras, that make up eons.

Answer is: in this experiment it is best to use some liquid alkanes (for example hexane), because gasoline consists of hydrocarbons with between four and twenty carbon atoms. Gasoline is a mixture  of many different hydrocarbons: alkanes (paraffins), cycloalkanes  and alkenes (olefins).