Hi everybody. I'm sorry that I haven't been in school for the past couple of days. I'm currently in the Rocky Mountains and I'm seeing some amazing rock formations. The ecosystem is very different out here. It is very dry and desert-like. In addition, the Rockies are at a much higher elevation than what I am used to in Philadelphia. As a result, I find myself breathing heavily after walking up a set of stairs. Do you know why that is?
Go to the following link, read the source, and answer these questions:
1. How long have biofuels been around?
2. Why are gasoline and diesel ancient biofuels?
3. Where do biofuels come from and how are they made?
4. Are biofuels renewable or nonrenewable? Why?
Above and Beyond: Do you think that biofuels provide a viable energy resource for our country? Why or why not?