The term length in the United States Senate would be "6 years," since the Founding Fathers wanted the Senators to be able to make decisions without constantly having to think about re-election.
Oligarchy is the political system that is run by a group of noble families or wealthy members of a society. The term Oligarchy was first used by the great Aristotle for describing the powers that were held by a very small and highly privileged group. These people often misused their powers and treated the people under their rule very poorly and also used them to satisfy their selfish needs. It has been commonly seen that the rulers that believed in Oligarchy actually selected people on herediterary basis and not based on merit.
Light does get absorbed, that's why we see black. If nothing reflects, all of the colors in the light gets absorbed into whatever it is hitting and we see black, the absence of light. Even if we see color, the colors that we dont see are being absorbed. When we do see color, it is because that color light gets reflected off of the object.