Question

Which of the following is not an example of a bio-mass energy source ?
1. wood
2. gobar-gas
3. nuclear energy
4. coal

Answer 1

Correct Answer - Option 1 : wood

CONCEPT:

Bio-mass energy:

• Bio-mass is the energy source that is received from animal wastes and plant materials.
  • For example, cow-dung, various plant materials like the residue after harvesting the crops, vegetable waste, and sewage are decomposed in the absence of oxygen to give biogas.

EXPLANATION:

• From the above, it is clear that wood, gobar-gas, and cow-dung are an example of biomass energy sources. Therefore option 1^st, 2^nd, and 4^th is not a bio-mass energy source.
• On the other hand, nuclear energy is obtained from nuclear fusion and fission. Therefore option 3^rd is the answer.