Regional differences made governing difficult.
Answer:
te learn more about a society
Explanation:
I do not have your choices of "the following" Here are some reasons I learned: Christianity, empire was too big and became hard to manage, there were many nonromans attacking parts of empire- Goths, the emperors themselves were weak or insane intrigue was rampant.
The Kyoto Treaty does not undermine the United States sovereignty because it does not have anything to do with such. It was a treaty that asks committing State parties to reduce greenhouse gas emissions because global warming does exist and it is caused by CO2 productions done by human activities.
There was tension in the politics of the nation which were largely due to differences in the economies of the North and the South. For the South, slavery was used as a labor source hence they supported slavery. The North on the other hand was opposed to slavery as it was largely urbanized. Different regions led to the creations of different economies.
