Question

# Why is ethanol used as a fuel?

Hint: Ethanol is an alcohol. It comes under the category of renewable fuel. It is produced from biomass. It produces a very less amount of greenhouse gases which are harmful to the environment.

Ethanol produces very less amount of greenhouse gases (GHG) like $C{{O}_{2}},{{N}_{2}}O,{{O}_{3}}$, etc, because the grain or the biomass which is used to make ethanol absorbs carbon dioxide as it grows.