A. They were largely concerned about economic affairs.
William Whewell was the first scientist.
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.
Answer:
true
Explanation:
we have so much pollution in the air with all the chemicals that we use over time, it's killing the ozone layer and us as well.