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Q147 (NDA-I/2025) Science & Technology › New Materials, Energy & Environment-linked Tech › Renewable power systems Answer Verified

Which one of the following is a non-conventional source of energy ?

Result
Your answer: —  Â·  Correct: C
Explanation

Energy sources are broadly classified into conventional and non-conventional categories. Conventional sources, also known as fossil fuels, include coal, petroleum, and natural gas, which are exhaustible and environmentally taxing [5]. In contrast, non-conventional sources are renewable, sustainable, and eco-friendly [3]. These include solar, wind, geothermal, biomass, and tidal energy [5]. Tidal energy is specifically identified as a non-conventional source derived from ocean waves and tidal movements [5]. While conventional fuels like coal and oil have historically dominated energy balances, non-conventional sources like tidal power are increasingly prioritized for energy conservation and climate change mitigation [4]. Therefore, among the given options, tidal energy is the only non-conventional source, as petroleum, natural gas, and coal are standard conventional fossil fuels [5].

Sources

  1. [1] INDIA PEOPLE AND ECONOMY, TEXTBOOK IN GEOGRAPHY FOR CLASS XII (NCERT 2025 ed.) > Chapter 5: Mineral and Energy Resources > Non-Conventional Energy Sources > p. 61
  2. [4] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 8: Energy Resources > ENERGY CONSERVATION > p. 31
  3. [5] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 8: Energy Resources > Energy Resources > p. 0
  4. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 8: Energy Resources > NON-CONVENTIONAL ENERGY > p. 27
  5. [2] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 22: Renewable Energy > Renewabte energy comprises of > p. 287
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