3 multiple-choice questions

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?

Why are young eastern european democracies at an increased risk for turmoil during a global recession? a) anger against increased democracy b) failure of the free market system c) government corruption d) lack of from the e. u.

Largest layer of atmosphere international space station orbits ultraviolet radiation causes ionization the phrases describe what layer of earth's atmosphere?