Respuesta :
Answer:
electromagnetism. (more info below)
Explanation:
Electromagnetism is the basic energy that propels a rocket. What is occurring is that any chemical reaction (the burning) gives fuel particles a fast speed and these are expelled from the rocket at the edges. As the momentum needs to be maintained and such particles have a net downward momentum (particles traveling upward clash with the rocket), a net upward momentum is obtained.
hope this helped!