A non-renewable source of energy is : (a) wood (b) alcohol (c) hydrogen gas (d) natural gas
Natural gas is a fossil fuel which can't be replenished over a small period of time. Hence, the correct choice is (d).
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.
An example of a renewable source of energy is: (a) petrol (b) natural gas (c) biogas (d) kerosene