Apiece of ice melts in one’s hand because heat moves from the hand into the ice. this is an example of heat transfer by

In the question "A piece of ice melts in one's hand because heat moves from the hand into the ice. This is an example of heat transfer by" conduction. Conduction is a method of heat transfer where heat is transfer directry from one medium to another due to a difference in temperature between the medium, without the movement of the medium.

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.