b. Original horizontality
Hope this helps!
<span>Factors contributing to the west ward expansion of the United States include the discovery of gold, the Homestead Act, and the desire for adventure, land and riches. The answers are the third, fourth and fifth statements among the choices that you have included or posted.</span>
I would say America has many different cultures mixed in. So many races live in America .
A.) Place
Geographers begin to study a place by finding where it is on the map. Cardinal directions and longitude and latitude are used to find this.
I think the answer is "State", you probably should quote me on this though...
