Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> What are alternative fuels and why are they needed?

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Alternative fuels are the fuels which serve as substitutes for conventional energy sources, like fossil fuels.

Fossil fuels are limited in quantity, which means that we cannot go on using them. Alternative fuels are obtained from renewable sources, which makes them a suitable substitute for fossil fuels. Examples of alternative fuels are hydrogen, ethanol and biodiesel.