Earth's Interior, Structure & Seismic Waves
पृथ्वी की आंतरिक संरचना और भूकंपीय तरंगें
Earth's Interior, Structure & Seismic Waves is part of the UPSC Prelims GS Paper I syllabus, under Geography — Physical. It appeared in Prelims GS Paper I question papers in 4 of the 10 years from 2016 to 2025 (2016, 2018, 2020, 2022). It is marked high-yield: a topic worth revising more than once.
What should you study in Earth's Interior, Structure & Seismic Waves?
- Crust, mantle, core & Gutenberg discontinuity
- Seismic waves (P, S, L) & shadow zones
- Mohorovičić discontinuity
- Earth's interior temperature & pressure
How often is Earth's Interior, Structure & Seismic Waves asked in UPSC Prelims?
Asked in 4 of 10 years, including 1 of the last 5. Highlighted years below are the ones it appeared in.
- 2016: asked
- 2017: not asked
- 2018: asked
- 2019: not asked
- 2020: asked
- 2021: not asked
- 2022: asked
- 2023: not asked
- 2024: not asked
- 2025: not asked
About the Prelims GS Paper I paper
General Studies Paper I is the Prelims paper that decides the cut-off: 100 multiple-choice questions for 200 marks, with negative marking for wrong answers. See all 88 Prelims GS Paper I topics.
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- Monsoon — Mechanism, ENSO, IOD, MJO & Indian ImpactHigh-yieldasked 6/10 yrs
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