In the early 1800s, englishman abraham darby invented a quicker, easier way to produce cast iron. in the 1850s, british engineer henry bessemer developed the first inexpensive process for mass-producing steel. these two events are an example of which type of relationship?

The above sentence mentions nothing that the development of henry Bessemer's invention was made possible only because of Abraham darby's invention. Thus, both inventions have a correlation relationship with one another and do not indicate an event is the occurrence of the other event.

a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

i hope this : )