A car engine usually converts gasoline into motion and heat through combustion.
An internal combustion engine burns a mixture of fuel and air.
A car engine burns fuel and air to create motion.
How does a car engine create movement?

(A) Oil
(B) Added pressure
(C) electricity
(D) activation energy
(E) contracting
(F) a hydraulic system
(G) Burning water and salt
(H) Burning fuel and air