50 points
at the beginning of the 19th century, most americans had no idea what lay beyond

select the best answer choice.
a.
the appalachian mountains
b.
the gulf of mexico
c.
the mississippi river
d.
mason-dixon line

The senate differs from the house of representatives in that representatives serve for terms, while senators serve terms. question 18 options: six year, four year four year, six year two year, six year six year, two year