Why were the liberated countries so unstable?

(1) which phrase describes an important agricultural change that occurred during the mississippian period? (a) first cultivation of wild grains (b) expansion of marsh elder farming (c) spread of corn agriculture (d) gathering of nuts and berries (2) which group of native americans use northwestern arkansas as it’s traditional hunting grounds? (a) osage (b) quapaw (c) woodland (d) caddo

Given that the volume of a cuboid is 180 cm³ and the area of one of its rectangular face 36 cm² what is the height of the cuboid

Witch layer of the atmosphere has the most air pressure