¿todos los países firmaron la declaración de los derechos humanos?

SI O NO?

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

Ben's town is holding an election for mayor next month, and he is trying to decide which of the two candidates for mayor will get his vote. ben thinks that his town's air quality has decreased in recent years. because of this belief, what should ben look for when deciding on a candidate?

If you were to measure the distance from earth to saturn, would you use light-years or au? why?