Explain 2 causes for the Civil War and 2 effects the war had on this country. Be sure to clearly list and explain the causes and effects. Thanks.

A key issue was states' rights and  territorial expansion.

Explanation:

states rights:

The Southern states wanted to assert their authority over the federal government so they could abolish federal laws they didn't support, especially laws interfering with the South's right to keep slaves and take them wherever they wished.

territorial expansion:

The South wished to take slavery into the western territories, while the North was committed to keeping them open to white labor alone.

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.