merchu (asker) Aug 24, 2009:

fuel energy & fossil energy In this text they seem to be interchangeable terms, for example: " As supplies of fossil energy dwindle, the cost of fuel increases everywhere" and "...the high price of imported fossil fuel makes it difficult, if not impossible, for poor farmers to power irrigation ..."

traductorchile Aug 23, 2009:

fossil or fuel creo que podría haber una diferencia según el contexto, la madera, el alcohol y otros no son fósiles, pero son combustibles.

Joseph Tein Aug 22, 2009:

Helping you would be much easier and more accurate if you gave a complete sentence that includes your term. It's very hard to guess the meaning with no context or background.