Hunter-gathering tribes
small towns and nomadic groups
city-states and small kingdoms
empires
nation-states
Towns often developed near oases because it was easy access to water and they could farm there.
He powder keg of Europe<span>, sometimes alternately </span>known<span> as the </span>Balkan powder keg<span>, refers to the </span>Balkans<span> in the early part of the 20th century preceding World War I.
HOPE THIS HELPS!!!!!!!!</span>
Your Answer would be D, Hope This Helps