Most of the water that evaporates from the oceans where it runs off to the oceans again.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

a and c

c is 100% but i am confused in a

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

real, smaller and upside-down.   so the answer should be b.