Differentiate between natural gas and biogas.

Natural Gas:

(i)Natural gas is an important clean energy resource found in association with or without petroleum.

(ii)It is used as a source of energy as well as an industrial raw material in the petrochemical industry.

(iii)Natural gas is considered an environment friendly fuel because of low carbon dioxide emissions and is, therefore, the fuel for the present century

Biogas:

(i)Shrubs, farm waste, animal and human waste are used to produce biogas for domestic consumption in rural areas.

(ii)The plants using cattle dung are known as ‘Gobar gas plants’ in rural India. These provide twin benefits to the farmer in the form of energy and improved quality of manure. Biogas is by far the most efficient use of cattle dung.

(iii)It improves the quality of manure and also prevents the loss of trees and manure due to burning of fuel wood and cow dung cakes