such as what they do.. advantages and disadvantages?
what will we do with the batteries in the future from electric cars?

How is biodiesel produced and is it an effective fuel? Vehicles in Brazil use ethanol for fuel. Why can’t/doesn’t the US move to all ethanol-based fuels? What is E85, and what advantages and disadvantages does it have? How is biodiesel produced and is it an effective fuel? What are some of the disadvantages of using biodiesel?

What are the advantages and disadvantages of using biodiesel fuel compared to using diesel/gasoline.