Which agreement allowed the inhabitants of the future new states to chose whether slavery would be allowed in their state ? A. The Missouri Compromise
B. The compromise of 1850
C. The treaty of Guadalupe Hidalgo
D. The Louisiana Purchase

social status of early civilizations was based primarily on economic power.- true ( first choice)

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation: