Question
Which of the following is not one of the non conventional sources of energy?
This question was previously asked in
RPF Constable 2018 Question Paper PDF (16-Feb-2019) (Shift 2)
The correct answer is
Coal
Coal is correct.
Non-conventional sources of energy are renewable sources that are replenished by nature, such as solar, wind, tidal, geothermal and biomass energy. Their large-scale use is relatively recent.
Coal is a fossil fuel formed from plant remains buried over millions of years. It is exhaustible and has been used on a large scale for a long time, so it is a conventional source of energy, along with petroleum and natural gas.
Solar, wind and tidal energy are therefore non-conventional, while coal is not.
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