What are ethanol and biodiesel classified as?

Ethanol and biodiesel are classified as biofuels derived from biomass because they are produced from organic materials. Biomass refers to any type of biological material, such as plants and animal waste, which can be converted into energy-rich fuels.

Ethanol is commonly produced through the fermentation of sugars from crops like corn and sugarcane, while biodiesel is derived from oils or fats through a process called transesterification. Both biofuels are considered renewable energy sources, as they can be replenished over time through agricultural practices.

This classification distinguishes them from fossil fuels, which are formed from ancient organic matter and are finite resources that contribute significantly to environmental issues like greenhouse gas emissions. Biofuels, conversely, are seen as part of a more sustainable energy future, aiming to reduce reliance on conventional fossil fuels and help mitigate climate change.