When applied to a formation of rock layers, what can absolute dating tell you?

(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

In which horizon of soil profile is prevent material usually found

After railroads, the next revolution of transportation came with the development of (a) automobile (b) telegraph (c) steam engine