Answer:
I can't answer 13, but 14 is silk, ancient China kept secret the way to make silk because (15) it gave them an advantage in trade (the silk road) because other countries would trade their goods for silk since china wouldn't tell them how to make it. Hope this helps!
1. False, a theater of war is a place where war is opened up, i.e. the Pacific Theater in World War Two.
2. True, espionage is spying.
3. True.
4. True, President Wilson did want the League of Nations.
5. True, he was eventually shot down by infantry fire, though.
