Question

which is a better fuel biogas or wood? give reason to support

Answer 1

biogas is a better fuel than wood because using biogas we can get electricity for lighting and cooking . the slurry produced is an excellent manure . it also utilises waste.if we use wood it causes pollution and lead to deforestation1 it does not produce any ash
2 no pollution occours
3 it has high value
4 no residue is left after burning

Answer 2

biogas is much better then the wood because is not harmful for environment and is easy to use but wood is not expensive then the bio gas