I need help with this, my brain is dead :p

Which of the following countries has declared itself nuclear free

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat

Which domain endings indicate websites that are most likely to be reliable sources? check all that apply. sites ending in .net