List any four characteristics of a good fuel.
I.It should possess low Ignition temperature.
II.It should not leave residue after burning, i.e., it should burn completely.
III.It should burn without producing too many pollutants.
IV.It should be easily available and accessible
V.It should be economical.
VI.It should be easy to store and transport.
(Any four of the above six will solve the purpose).