It was a trigger that showed that there were two competing powers in Europe: Russia and Austria-Hungary (and their allies).
Franz Ferdinand was killed by a Serbian separatist and the Austrians wanted him to be punished. On the other hand, Russia supported Serbia is saying that Austrian demands ( to be allowed to search for the culprit inside Serbia) were too much.
This lead to a direct conflict between the two powers (Austria and Russia) and further lead to the war.
Nope....................
BTW what kind of question is this?
The groups that lived in the Great Plains were very diverse. Some of them farmed and others moved around following bison herds. Groups were so diverse that they developed a sign language for communication when trading or negotiating terms.
These companies were all joint-stock companies. This means that these companies were all owned by several people called shareholders. The purpose for these joint-stock companies was to reduce risk of overseas trade. If something were to happen to the company or its goods, there would only be minimal setbacks with each of the shareholders, rather than a huge setback with one owner.