"$A$ biogas plant solves the fuel as well as environmental problems". Discuss.

(N/A) Biogas is considered an ideal fuel for the following reasons:
$(i)$ It has a high calorific value, providing efficient energy.
$(ii)$ It burns without producing smoke, ensuring clean combustion.
$(iii)$ It has a moderate ignition temperature, making it safe to handle.
$(iv)$ It does not produce harmful residues or toxic gases upon combustion.
$(v)$ It is cost-effective and easily accessible, especially in rural areas.
Due to these characteristics:
$(i)$ Biogas acts as an excellent fuel source, thereby addressing the fuel crisis.
$(ii)$ Since it does not cause air pollution, it helps solve environmental problems.
$(iii)$ The use of animal waste and organic matter in biogas plants prevents water pollution and promotes waste management.