What is the average amount of energy of motion in the particles of a substance

The european union was formally established in

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?

What is the difference between the formation and characteristics of intrusive igneous rock and extrusive igneous rock?