In exchange for land, a knight agreed to be a sort of sub-vassal to a vassal. this agreement was known as investiture summons subinfeudation servitude

Will have the greatest effect on human health. pollution in the a. troposphere b. stratosphere mesosphere d. thermosphere

What event from world war l does the image most likely depict

Both the nervous and endocrine systems send electrical and chemical signals for internal communication. select the best answer from the choices provided t f