A set of non-conventional sources of energy out of the following is :

Question

Accepted Answer

Explanation:

Option 3: Solar energy, atomic energy, wind energy

This option is correct because it lists non-conventional sources of energy. Non-conventional energy sources are those that are renewable and have a lower environmental impact compared to conventional sources.

- **Solar Energy**: This is a renewable energy source that harnesses energy from the sun. It is considered non-conventional because it is abundant, sustainable, and environmentally friendly.
  
- **Atomic Energy**: Also known as nuclear energy, it is derived from nuclear reactions. While it is not renewable in the traditional sense, it is considered non-conventional due to its ability to produce large amounts of energy with low greenhouse gas emissions.
  
- **Wind Energy**: This is another renewable energy source that uses wind turbines to generate electricity. It is non-conventional because it is sustainable and has minimal environmental impact.

Option 1: Mineral oil, natural gas, coal

This option is incorrect because it lists conventional sources of energy. These are fossil fuels that are non-renewable and have significant environmental impacts due to greenhouse gas emissions.

Option 2: Coal, wind energy, bio gas

This option is incorrect because it includes coal, which is a conventional energy source. Although wind energy and biogas are non-conventional, the presence of coal makes this option incorrect.

Option 4: Geo-thermal energy, natural gas, petroleum

This option is incorrect because it includes natural gas and petroleum, which are conventional energy sources. While geothermal energy is non-conventional, the inclusion of natural gas and petroleum disqualifies this option.

In conclusion, Option 3 is the correct answer as it exclusively lists non-conventional sources of energy, which are characterized by their renewable nature and lower environmental impact.