A place , person or thing from which something comes or can be obtained?

Why are committees necessary in congress?

Who is the speaker in this excerpt from book 13 of homer’s odyssey, and what inference can you make from the tone?

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?