Janelle made a hypothesis about the uneven temperatures inside her house during winter. She believes that 50% of the heating ducts are blocked, and she plans to investigate. If she wants to prove her hypothesis using scientific processes, what should she do next?

The total number of electrons is 14

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.