During the second industrial revolution, which building material became one of the most important in the world?

Pl hell mafter the civil war which president was called a "carpetbagger"? a. lincolnb. johnsonb. grant

What motivated marcus garvey to form his philosophy

Plz me on september 17, 1860to the union and confederate army’s fought the in maryland. it was one of the bloodiest battles in the civil war. a. battle of the seven pines. b. battle of antietam c. first battle of bull run. d. second battle of bull run.