During the 17th and 18th centuries, the frontier for the British colonies of North Americas could usually be found at the "<span>b. Appalachian Mountains" since this was the area that most settlers were not inclined to pass.</span>
The correct answer among all the other choice is C. Okinawa. This battle convinced Allied leaders that an invasion of the Japanese mainland might be too costly in human lives. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Four modernizaron is the correct answer
<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>