Which one among the following is a non-conventional source of energy?
Petroleum
Coal
Radioactive elements
Solar energy
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Answer is Wrong!
This question was previously asked in
UPSC CDS-2 – 2020
Solar energy is considered a non-conventional or renewable source of energy.Conventional energy sources are typically fossil fuels (coal, petroleum, natural gas) and nuclear energy, which are finite or use processes developed conventionally. Non-conventional sources are renewable and environmentally friendly, such as solar, wind, geothermal, tidal, and biomass energy.