The answer is D.
The French and Indian War Started in 1754 and ended in 1763. This war took place in North America it was the British/Colonist against the French/Native Americans. The war finally ended with the British winning and resulted in the Treaty of Paris.
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The romantic engineering contribution was Arches because these could withstand the force of the building and able to hold up with two pillars on each side withstanding the force.
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Answer:
During the years of the Black Plague, very few places in Europe had safe drinking water. Most people had to obtain their water from more or less unclean sources, although a few were lucky enough to live in sparsely populated areas with non-existant pollution, or close to pristine water sources like a stream.
The lack of safe drinking water, or better, the abundance of dirty water sources also contributed to spread of the disease in the 14th century, which killed around a third of the European population at the time, in some places killing over half of the population.