a violent clash between pro slavery and antislavery forces.
Explanation:
The idea that people from new territories would vote on slavery cause problems very quickly. Both sides started showing up in Kansas and a violent wave was the result of it. Things escalated to a point that things seemed out of control. Pro-slavery people burned the settlement of Lawrence, Kansas and John Brown and his abolitionist group murdered a pro-slavery man.
A migrant worker often earn's money in a host country and returns a small amount to their home country. This money then flows into the economy and can greatly benefit the home country over time.
Most of France's population was in the third estate yet they had the smallest amount of land. The thirds estate was also the poorest but they had to pay more taxes than the first and second estates.