How long does it take to get hypothermia in 30 degree weather

How has industrialization hurt the forest of europe

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?

How much damage is done by landslides in a typical year in the u.s.?