Terrance farming helped Early south American farmers with which challenge? A. Planting crops on steep mountain sides
B. Hunting mammoths and ground sloth
C. Getting water from rivers to farm
D. Finding the right crops to plant

a they would use it on steep areas

increased food supply

improved public health

increased birth rates

hope this : d

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: