posted by JAYJAY .
Imagine that the gasoline that you are burning in your car this week was refined from petroleum that was produced from jurassic-age rocks in Arkansas. What is the primary source of energy that has been reclaimed to power your car? Explain. Hint: What is the "heat engine" that drives the origin of coal?
You might find something helpful in one or some of the following links:
Sra; searching y.ahoo is what got me here