The first instances of humans intentionally practicing what geographers recognize as agriculture took place during which of the following periods? The Green Revolution
The Neolithic Agricultural Revolution
The Modern Commercial Agricultural Revolution
The Second Agricultural Revolution
The Third Agricultural Revolution

(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

Why are shark population in decline worldwide?

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4