No energy is given off since energy conserved. None of these is correct. It is more efficient to cool a cup of hot water by adding ice cubes rather than adding an equal amount of cold water because 1 . The ice is colder than the cold water. The ice will dilute the drink less than the water.
Ice has a greater heat capacity than water.
Ice undergoes a change of state. None of these statements is correct. Electromagnetic waves and matter differ in that 1 . Only matter can transfer energy from place to place. Only electromagnetic waves can exert force on material objects.