Is hekla volcano in middle of a content

Which property of soil depends on the size of particles? color odor temperature texture

Can someone answer all these questions i need it done by tonight. once again

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?