Why has the northeast been referred to as the gateway to america

Of the major religions today, which two are monotheistic?

Unlike other andean nations, chile has a relatively small population of mestizos people of european descent indians people of asian descent

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?