What happened before Genghis Khan united the Mongols?

B.) China pushed the Mongols out of the country!

Explanation:

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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.

demand is the need and oportunity to buy a given good or service.