In cities such as New York, Chicago, and Cleveland black middle and upper classes emerged. The correct answer is A.
it was kolkata It is one of India's largest cities and one of its major ports.
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A smarter power grid would help resolve power failures. A power grid is a system that produces electricity and moves it where it needs to be when it needs to be there. The US power grid was created in the 1890s. <span>
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Tenements were very crowded and dirty as there was little space and many people living in just small rooms
