Q19
Commercial sources of energy purely consist of
A.
Power, coal, oil, gas, hydro-electricity and uranium
AnswerB.
Coal, oil, firewood, vegetable waste and agricultural waste
C.
Power, coal, animal dung and firewood
D.
Coal, gas, oil and firewood
Answer: Option A
Solution
Answer: Option A
Solution:
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.