Fact 1: An electric stove transforms electrical energy to heat energy.  Fact 2: For example, it takes energy to boil water on the stove.  Given the two facts above, how do electric stoves boil water?
Options are:
 - converting electricity to heat.
 - burning.
 - heat is produced.
 - magnetism.
 - peltier effect.
 - A transportation fuel.
 - heating liquids.
 - heat production.
converting electricity to heat