WHY is radiation the only type of heat transfer that can pass
through a vacuum?
because conduction and convection both
need matter in order to transfer heat
B
because radiation, convection, and
conduction are all the same thing

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Hope you find the answer

A. is your answer.  hope this  

Radioactive fallout is a result of the fission creation used to ignite the thermonuclear fusion reaction.