How does the heliocentric model explain the retrograte motion of mars?

all fossil fuels are nonrenewable, so think coal, gasoline, things that we will eventually run out of. all fossil fuels are nonrenewable resources, but not all nonrenewable recourses are fossil fuels. these resources are not being renewed as fast as we are using them. i hope this considering there weren't any answer choices.

these include the fossil fuels, oil, natural gas, and coal and nuclear energy. hope this ! ^.^

-ella