Question

Non-conventional energy source is

• A. Tidal energy
• B. Biogas
• C. Geothermal energy
• D. All of the above

Answer 1

The correct option is D All of the above

• Energy generated by using wind, tides, solar, geothermal heat and biomass including farm and animal waste as well as human excreta is known as non-conventional energy.
• All non-conventional energy sources are renewable or inexhaustible and do not cause environmental pollution. Moreover, they do not require heavy expenditure.

So, the correct answer is option D.