Boiling means change from a liquid into a gas by adding heat energy, and boiling is the very rapid conversion of a liquid into vapor by the violent evolution of bubbles. Given these facts, what means a change from a liquid into a gas by adding heat energy among the following options:
- Evaporation of water
 - heat is produced
 - violent evolution of bubbles
 - igniting fuel and oxidiser
 - Water expanding
 - a hemisphere is tilted away from the sun
 - evaporative cooling
 - degrees Celsius


 

   violent evolution of bubbles      