What was the most common material used by pre-historic man to create weapons?

At the time of the brown v. board of education decision,schools were segregated everywhere in the country.several states had laws requiring segregated schools.schools in nearly every state has been desegregated.segregation was common in the north, but not in the south.

Which one of these was a consequence for farmers during the dust bowl

Who was the founder of taoism whose name means "the old master"? a. laozi c. hanfeizi b. wu wang d. wu wudi