The correct answer is
<span>A great distance geographically separated colonists and Britain
They spoke the same language - English. The religious beliefs were mostly the same, but the colonies had more diversity in their Christianity while the English were predominantly protestant. The colonists didn't ally themselves with the natives.</span>
<span>At the beginning of World War I, Russia’s armies performed poorly. In response, Nicholas II appointed himself commander-in-chief, so he could take direct control of the military from Grand Duke Nicholas, against the advice of his ministers. Nicholas II spent much of late 1915 through August 1917 away from Tsarskoe Selo in Saint Petersburg.</span>
Honestly, none. The union didn't really have any agricultural advantages over the Confederacy, in fact, it can be argued that agriculture was one of the biggest disadvantages of the union.
