Which of the following is not the example of renewal energy?
- bio ethanol
- wind energy
- fire wood
- none of above
1 Answer
Correct option is D
Bio ethanol fuel is made from sugar fermentation process, however it is also produced by chemical process of reacting ethylene with steam. So it is renewal fuel.
Wind energy is obviously renewal energy. Firewood are also renewal source of fuel as much as there are plants out there.
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