Do most nova scotians have a scottish heritage

What border separates sonora and chihuahua national border state border physical boundary natural boundary

In which horizon of soil profile is prevent material usually found

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?