Ax 2012 where does the instancerelationtype come from

Which of harriet martineau’s books is a foundational treatise on sociological data collection?

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.

What is the most necessary information that happened in the titanic movie