What did louis sullivan's designs emphasize? vertical lines using steel frames
vertical lines using an open floor plan
horizontal lines using an open floor plan
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Which of these is true of that temperance movement at the beginning of the 1800’s in america?

How was rockefeller able to build his monopoly across the oil industry? he found newer and cheaper ways to refine oil, increasing his profits. he confined his business to ohio so he could buy all the refineries there. he bought up oil refineries, cut costs, and reinvested his profits in other refineries. he began to sell kerosene as well as oil, expanding his market.

Why was the united nations established