Out of the following which is not a non conventional source of energy:

Correct option is D

The correct answer is (D)   ​Nuclear energy

• Nuclear energy is not considered a non-conventional energy source.
  

Information booster:

Non-Conventional (Renewable) Energy Sources

• These are renewable energy sources that are abundant in nature and can be regenerated easily.
• Examples: Solar energy, Wind energy, Tidal energy, Geothermal energy, Biomass energy.
• Sustainable and eco-friendly.
  

Conventional (Non-Renewable) Energy Sources

• These are limited energy resources that take millions of years to form. Once exhausted, they cannot be easily replenished.
• Examples: Coal, Petroleum, Natural gas.
• Limited and contributes to environmental pollution when used.