Do all rhombuses have all right angles

(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

The primary agent of contact metamorphism is

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.