Answer:
Inventions like the airplane and machine gun
Explanation:
World War I was so deadly because all of the new weapons that were invented. New technology that was being invented such as machine guns and mustard gas made war deadlier than every war before.
C. bc Popular Sovereignty means a choice made by the people.
I think it would be right to peacefully assemble because we mostly know the first amendment is right to speech, religion, etc., but with the right to speech you could peacefully "speak" your opinion.
Answer: They did not want these powers to be controlled by just one man or one group.
Explanation:
The answer must be C due to the desire to preserve Mongol culture
