The machine gun was decisive in securing victories for the Allies in WW1, if that's the time period this is focused on.
D, because America recently got out of the Great Depression.
Answer:
The most direct cause of the development of factories in Manchester (the first industrial city in the world), was the invention of the spinning jenny by James Hargreaves, and the invention of the water frame by Richard Arkwright.
These two inventions made the production of cloth from cotton a lot of faster and easier. Shortly after, these two inventors founded factories in Manchester, and hired people from the countryside.
From this moment on, the industry boomed, and Manchester became the first industrial city in the world, effectively starting the Industrial Revolution.
French revolution was a widely known struggle under the ruler Louis XVI. The conflict was between the monarchy sector and the noble men whom the tax system is imposed. This provoked everyone to take the freedom to express their complaints. Furthermore, there were two social groups that emerged at that time: the aristocracy and the bourgeoisie. Answers are C and D
True, Nixon's foreign policy was heavily criticized.<span />
