They built 11 mounds at Spiro near the Arkansas River.
Aristotle pioneered the use of the term as meaning rule by the rich, for which another term commonly used today is plutocracy. In the early 20th century Robert Michels developed the theory that democracies, as all large organizations, have a tendency to turn into oligarchies.
Answer:
It helped germany accomplishing its main objectives
I think it is b because i know all other sources can be a freshwater ecosystem and swamps have a freshwater and salt water kinds so ya