Black holes themselves can not be seen, nor do they leave trails (since emptiness does not have to be caused by a black hole), but there is evidence for black holes: scientists can see the effects of their gravity on nearby stars. The answer is B.
Answer:
The gin improved the separation of the seeds and fibers but the cotton still needed to be picked by hand. The demand for cotton roughly doubled each decade following Whitney's invention. So cotton became a very profitable crop that also demanded a growing slave-labor force to harvest it.
correct answer B
Answer:
i believe its machine gun
Explanation:
a weapon originally developed by an American, Hiram Maxim. The Germans recognized its military potential and had large numbers ready to use in 1914.
Many American Indians more inclined to side with the French during the seven years' war than they were with the British colonists because the French were more inclined to settle widely on native lands than the English or Spanish were.
The Seven Years' War was an international battle between France and Great Britain over dominance on the world stage. Prussia tried to expand its territory in Europe and consolidate its authority as Britain, France, and Spain engaged in combat both in Europe and abroad with land-based troops and naval forces.
French-allied tribes aimed to thwart British advance. The British, who were settling with their wives and families while French trappers were marrying Native women, had caused more trouble than the French, who had caused less.
The French posed less of a danger to the Native Americans than they did in general. Less French were establishing permanent colonies and annexing Native American territory in North America. The Native Americans were likewise given more respect by the French.
Compared to other European nations, the French enjoy a greater rapport with American Indians. There are various reasons for this, including the fact that they respect the locals and depend on their assistance to exist. The yearly trade was their major priority. They earned respect from the Indians since they didn't fight over their territory.
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