Aterm used to describe unsettled land or territory west of the existing colonies. people that traveled to settle these areas were called pioneers. term: type term here

A frontier is essentially the term which is used to portray the land that lies past a settled geographic locale or region or we can say that frontier is the idea of a place that exists at the edge of a human progress, especially during a time of extension. The American frontier happened all through the seventeenth to twentieth centuries as Euro-Americans which are colonized and extended crosswise over North America.

answer: the risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.