The tectonic cycle describes the movement of earth's crust. recycled "new" oceanic crust is formed by at divergent boundaries.

a. convergence
b. weathering
c. seafloor spreading
d. subduction

(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

Which volcanic eruption caused the most deaths

Summary of the impact of the physical environment on settlement patterns and economic activities for ukraine