What started the great Chicago fire of 1871

How did northem leaders try to encourage americans to buy goods made in the united states rather than foreign imports? a high taxes on imports to increase the cost of imported goods b low taxes on imports to increase the cost of imported goods c. high taxes on imports to decrease the cost of imported goods d. low taxes on imports to decrease the cost of imported goods e high taxes on imports to decrease the cost of manufactured goods

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.

Under the new imperialism europe did not need large numbers of people to control territories because of