How are metals, metalloid and nonmetals separated on the periodic table?

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

What conclusion can you draw from this experiment about the components of the black ink?

What do we call the rows on the periodic table? a. periodb. familyc. groupd. metals