Select all that apply. nation-states are characterized by -a multi-ethnic empire -common culture or language -a self-governing country -possessions around the world,

Nation-states are characterized by common culture or language  and a self-governing country. Option 2 and 3 are correct.

A nation state refers to a state in which the vast majority shares the same culture have a common identity and is conscious of it. The nation state is an ideal in which cultural boundaries match up with political ones.

Nowadays nation is understood as 'the' political community that ensures the legitimacy of the state over its territory."

one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.