Commercial sources of energy purely consist of
A
Power, coal, oil, gas, hydro-electricity and uranium
B
Coal, oil, firewood, vegetable waste and agricultural waste
C
Power, coal, animal dung and firewood
D
Coal, gas, oil and firewood
Correct Answer: Power, coal, oil, gas, hydro-electricity and uranium
Commercial energy is energy which is available to the users at some price. Commercial sources of energy purely consist of power, coal, oil, gas, hydro-electricity and uranium.