What is the usefulness of categorizing earths history into the geologic time scale?

Does einsteinium conduct electricity? What is the biggest mistake with a diamond? A small pin contains 0.0178 mol of iron how many atoms of iron are in the pin? What type of weathering is crack in the sidewalk? What are the colors of hologens? What are the three steps that most occur in the formation of a caldera? What are the electronic confuguration of elements 1 - 30? What rock is the state capitol building made of? Is there a such thing as stale air? What compound ammonia contains three atoms of hydrogen for every atom of nitrgen so the chemical formula for ammonia is? How does the crust adjust to gravity? Reaction of Cu and Ag plus to yield Cu plus 2 and Ag? 0 degrees kelvin? True or false-the ocean contains more than 90 percent of the water on earth? How clouds reach deep inlands? How are fossil fuels converted into energy? What is 57 degrees Fahrenheit in Centigrade? Would sodium chloride and sand be a heterogeneous mixture? Who are the proponents of the geocitric? What is produced as the result of unequal warming of the earth?

What is the usefulness of categorizing earths history into the geologic time scale?