Producing thrust causes something to move, and all rockets generate thrust by igniting an mixture of fuel and 'oxidiser'. Given these facts, what causes a rocket to move among the following options:
- flow of electrons
 - Electrical energy
 - expansion into a vacuum
 - magma
 - kinetic energy
 - igniting fuel and oxidiser
 - pulsars
 - heat is produced


 

      igniting fuel and oxidiser   