In the 1860s, most factories were located in the North of the United States, mostly because the South was largely agricultural and remained this way for many years.
Answer:
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The correct answer is boll weevil
Boll Weevils are a small beetle that feeds on grains, such as wheat and rice. There are several types of weevils. And it is "greatest enemy" for cotton because it can invade the pantry or a plantation and make an infestation occurs.
I think it’s -6+(-3) + 5 if I am right