How many moles of water are produced from the following reaction, when 275 kJ of energy is given off?
4 NH3 + 302 --> 2 N2 DetaH= -1530 kJ

North atlantic current or north atlantic drift is the answer

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.

It will appear as o2(g) as a reactant 

Are you going to give an example of the plant or?