Mention the term. in general, your child in exchange for good behavior can teach your child that behaving well is only worthwhile if the child obtains something in return. however, if you use this method judiciously in critical situations, it can be very effective.

Noble gases is far right

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.

The correct answer is b) false

Are there any options that could alot..