What are some possible alternative fuel sources? What are the ingredients?

Question

I'm studying alternative fuel but need a little help!

Answer 1

Poo, from cows, horses, etc. to make methane.

http://www.mothercow.org/oxen/gobar-gas-...

If I remember right there was a dairy that was using this process.

Found it and here you go

http://www.sfgate.com/cgi-bin/article.cg...

Just remember in alternative energy there won't be one answer but many and you just need the one that fits you best.

Answer 2

USe your feet like Fred Flintstone.

Answer 3

Banana peals,  Seen it on Back to the Future.  Peel Banana.  Eat Banana.  Then put peal in Flux capacitor.