A person moves a book from a 30-cm high coffee
table to the top shelf of a bookshelf approximately
2.5 m high. Which statement correctly describes
the gravitational potential energy of the book?

D. is the answer hope that you

Electrical charges of ionic bonds

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.