Physics
Grade-10
Easy
Question
Corn, wheat, and soybeans can be made into a substance called ethanol. In some places, ethanol is part of a mixture used to power cars and trucks. What type of alternative energy resource is ethanol?
- Hydroelectric
- Geothermal
- Biofuels
- Solar
Hint:
Biofuels
The correct answer is: Biofuels
The correct answer is Biofuels.
¶Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels, such as oil. Since biomass can be used as a fuel directly, some people use the words biomass and biofuel interchangeably.
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