Question: Which of the following is not an example of a bio-mass energy source?

a. Wood
b. Gobar Gas
c. Nuclear energy
d. Coal

Answer:
Answer: (c)

Biomass is the dead remains of living organisms or organic substances. Wood, gobar gas (biogas) are produced from biomass. Coal is produced by the carbonization of the dead and decaying plant and animal remains over millions of years ago and hence is a biomass product as well. Nuclear energy is produced by radioactive elements by their fission and fusion properties.