Answer:
Climate Change or Global Warming
Explanation:
Answer:
Propaganda was information used to influence opinion, its role in World war I was it stressed the German invasion on the neutral country, Belgium.
Explanation:
Because they thought that the neutral US was helping the allies.
Answer:
A vassal or liege subject is a person regarded as having a mutual obligation to a lord or monarch, in the context of the feudal system in medieval Europe. The obligations often included military support by knights in exchange for certain privileges, usually including land held as a tenant or fief.
It affected their social lives, and there was very little trade between the two regions (the only ones around.) They also needed many people. They developed irrigation and drainage systems which caused many people to work.