Select the correct responses to the questions from the drop-down menu. What did scientists study to develop the geologic time scale?

Which division of the geologic time scale includes most of Earth’s history?

Fossils, Precambrian

Explanation:)

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.