In the context of alternative sources of energy, ethanol as a viable bio-fuel can be obtained from

1. Ethanol can be produced from various biomass materials through fermentation. 2. It is considered a viable bio-fuel and an alternative source of energy. 3. While ethanol can be technically obtained from starch-rich crops like Potato, Rice, and Wheat, Sugarcane is a primary source, especially in countries like Brazil, because its readily fermentable sugars allow for more direct and efficient ethanol production compared to converting starches first. 4. Sugarcane is widely recognized as a major source for viable bio-fuel ethanol production.