Chlorofluorocarbons rise to the stratosphere and Multiple Choice interact with UV energy to produce free radicals that react with oxygen to create ozone. interact with UV energy to produce free radicals that destroy ozone. react directly with stratospheric ozone to destroy it. react with free radicals to remove carbon dioxide.

Ifound this on google “laws of chemical combination. it states that matter can neither be created nor destroyed. it stated that a given compound always contains exactly the same proportion of elements by weight.” i hope this you for what your looking for.

The correct answer is "atomic weight".

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.