Which statement is true about point f

Amountain is larger than a hill, with steep sides true or false

Suggest 3 different reasons why there is an ageing population in the uk .

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?