In the early 1800's, the rocky mountains were a barrier to the settlers moving west? true or false

Which alternative to public school receives a state funding. but avoid public school regulations a) tuition wavier schools b) homeschools c) charter schools d) private schools

Which is the following statements best describes how urban commuting changed in the late 1800s

Demographers can compare a choropleth map to a to understand how geography influences population distribution and there are no a, b,c, or d u have to find it out ur self asap