Who is the presidant of ethiopia

Which environmental change allowed people to travel by land between asia and north america a.human apaption to arctic environments b.the introduction to horses to north america c.the formation of ice sheets on land d.a rise in ocean temperatures

Of the 8 territories that were brought under the flag of the united states by 1853, which one do you think was the most important addition to the growth of the united states?

Which statement about mound builder works is true? earthen mounds were created for children to play on. bowls shaped like animals were made of stone. portraits were made of solid gold and painted with bright colors