Based on current estimates of the value of hubble's constant, how old is the universe?

(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 a economy individuals answer the three basic and the central authority or leaders have little say in the economy.

Asap! ! ! western china, northern china and southeastern mongolia are all located in what climate zone? tropical wetdesert humid subtropical humid continental