A land between the rivers
The two american empires were the Incas and Aztecs. They carried Gold and Silver.
<span>A geographer is someone who studies the earth and its land, features, and inhabitants. They also examine phenomena such as political or cultural structures as they relate to geography. They study the physical or human geographic characteristics or both of a region, ranging in scale from local to global.</span>
Answer is tax base, the rest are all very important
