Examveda
Examveda

Which of the following is not commercial source of energy?

A. Coal

B. Petroleum

C. Natural Gas

D. Firewood

Answer: Option D

Solution(By Examveda Team)

Commercial source of energy such as coal, petroleum & natural gas are obtained commercially whereas fire wood is obtained non-commercially by people from wastelands forestlands in terms of twigs, sticks etc.

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