Answer:
D
Explanation:
With the cotton gin, production rates boosted because it cleaned the cotton faster, and separated the seeds quicker. That way, cotton plantation owners sold much more cotton, and made a lot more money.
Answer: The history of every age proves that no people can attain a high degree of intelligence and morality unless its feeling of nationality is strongly developed. This noteworthy fact is an inevitable consequence of the laws that rule human nature. . . .Therefore, if we so ardently desire the emancipation of Italy--if we declare that in the face of this great question all the petty questions that divide us must be silenced--it is not only that we may see our country glorious and powerful but that above all we may elevate her in intelligence and moral development up to the plane of the most civilized nations. . . .This union we preach with such ardor is not so difficult to obtain as one might suppose if one judged only by exterior appearances or if one were preoccupied with our unhappy divisions. Nationalism has become general; it grows daily; and it has already grown strong enough to keep all parts of Italy united despite the differences that distinguish them.
<span> Although the skyrocketing urban populations strained public school systems, schools educated everyone from the children of urban professionals to the children of immigrant workers and the very poor. Some cities, including Boston, New York, Chicago, and San Francisco, even provided free secondary schools.</span>
Hi. You did not present the cover of the magazine to which this question refers, which makes it impossible for this question to be answered. However, I will try to help you as best I can.
A historical circumstance refers to a condition for a historical event to happen, that is, this circumstance is referring to a historical event that caused another historical event of greater impact and proportion. Therefore, to answer your question, you must analyze the cover of your magazine and identify which circumstance, which historical event, which provoked another historical event, this cover addresses.