Concluding exercise 1
directions: in 1-2 paragraphs, answer the following question:
what was the single, primary cause that lay behind almost all of the political controversies a
turmoil in the united states during the 19th century? in answering, use at least three amere
events to explain how those events drove the northern and southern sections of the united
states further apart.

im not sure

step-by-step explanation: s

hhebeueubevcje. he. me. e beben

it increase by 12% a year from 1812-1820

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: