Which statement about global geothermal capacity at the end of 2025 is correct?
- A.It stood at 15.67 GW, with Indonesia among the leading countries
- B.It stood at 159.8 GW, led by China
- C.It stood at 45.2 GW, led by India
- D.It stood at 8.9 GW, led by Iceland
Correct answer
Explanation
The correct answer is the first option. Installed geothermal capacity across the world reached a little over fifteen and a half gigawatts by the close of that year, and five countries, namely Indonesia, the United States, the Philippines, Turkiye and New Zealand, together accounted for roughly sixty-seven per cent of it. Option B is wrong because the figure it gives is far larger than the geothermal total and does not describe this sector at all. Option C is wrong because India has no commercial geothermal generation yet and is only now moving from assessment to field demonstration. Option D understates the global figure and wrongly places Iceland at the top, although Iceland is indeed one of the countries India has named as a partner for geothermal cooperation, along with Australia and Saudi Arabia.
Read the full article: Geothermal Energy: India's First Wells Open in Puga Valley
Practice Questions
India's first two geothermal wells were commissioned in which valley?
- A.Nubra Valley
- B.Puga Valley
- C.Spiti Valley
- D.Suru Valley
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The valley sits more than fourteen thousand feet above sea level and has long been known for its hot springs and underground heat reserves, which is why it is counted among the most promising geothermal sites in India.
Read the full explanation →How many hot springs and geothermal provinces has the Geological Survey of India mapped?
- A.340 hot springs and 7 provinces
- B.381 hot springs and 10 provinces
- C.412 hot springs and 12 provinces
- D.381 hot springs and 14 provinces
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The provinces run across very different terrains, from the Himalayan belt and the Andaman and Nicobar Islands to the West Coast, the Cambay Graben, the Son-Narmada-Tapi zone and the cratonic region of southern India.
Read the full explanation →Which of these is India's proposed next-generation timing and spectroscopy mission named in the announcement?
- A.AstroSat
- B.NewAthena
- C.XSat
- D.Aditya
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The announcement describes it as India's proposed next-generation timing and spectroscopy mission, which together with other future observatories will bring improved sensitivity and monitoring capability for studying ultraluminous X-ray sources.
Read the full explanation →The research team that explained the behaviour of ULX-8 was drawn mainly from which institutes?
- A.Indian Institute of Astrophysics and Raman Research Institute
- B.Physical Research Laboratory and Space Applications Centre
- C.Tata Institute of Fundamental Research and Indian Institute of Science
- D.National Centre for Radio Astrophysics and Aryabhatta Research Institute
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The paper was authored by Tarang Vashisht, a student at IISER Mohali, together with Aru Beri of the Indian Institute of Astrophysics and researchers from IUCAA and the Raman Research Institute.
Read the full explanation →Which limit describes the brightness at which radiation pressure pushing matter outward balances gravity pulling it inward?
- A.Chandrasekhar limit
- B.Eddington limit
- C.Roche limit
- D.Schwarzschild radius
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It is often used as a benchmark for how bright an accreting object can be, since beyond it the outward push of radiation would overwhelm the inward pull of gravity.
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