Neolithic humans tended to settle in which of the following areas? River valleys
Deserts
Mountain
Tundras

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

true

coz they had the rank system in society according to the economic power of the people

c, they united with once

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.