An example of a renewable source of energy is: (a) petrol (b) natural gas (c) biogas (d) kerosene
Biogas is a renewable source of energy.
The non-renewable source of energy among the following is : (a) hydroelectricity (b) sewage gas (c) natural gas (d) gobar gas
Renewable source of energy is :
(a) coal (b) fossil fuels
(c) natural gas (d) sun.