What characteristic of a purely competitive market does crude oil have ?

What was the result of president taft's "dollar diplomacy

New communication technologies, improved transportation, and advanced military weapons made it possible for countries to speed up acquiring territory. rule large amounts of territory. fight off competition from opposing nations. expand their economies, which aided in conguest.

How long was it from the time african american men were given the right to vote until women were given the right to vote?