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World GK practice question for SSC. Review the correct answer and explanation, then continue with related practice below.

Question language / प्रश्न भाषा

What was the magnitude of the Indian Ocean Tsunami of 2004?

2004 में हिंद महासागर में आई सुनामी की तीव्रता कितनी थी?

Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।

7.47.4

8.98.9

9.19.1

✓

8.68.6

Correct Answerसही उत्तर

C. 9.1C. 9.1

Explanationव्याख्या

The correct answer according to the source is 9.1.
The book states that the 2004 Indian Ocean tsunami had a magnitude of 9.1.
Its explanation also says that tsunami magnitude, written as Mt in the source, is a number used to compare the sizes of tsunamis generated by different earthquakes.
Therefore the source-supported examination chain is: Indian Ocean Tsunami — 2004 — magnitude 9.1; tsunami magnitude
Mt — used for comparing the sizes of tsunamis generated by different earthquakes.
The options 7.4, 8.9 and 8.6 are distractors.
This is a disaster-related World GK question that combines a major historical event with a numerical fact.
Students should retain the figure exactly as printed in the source because the purpose of the current project is faithful extraction of the book's question-answer material.
The source's explanation uses the phrase 'tsunami magnitude or Mt', and that terminology has been retained as source framing rather than replaced with a different measurement discussion.
The book does not provide the date of the tsunami, epicentre, affected countries, death toll, earthquake depth or tectonic details in this particular entry.
Those facts have therefore not been added as source-derived information.
A future question may simply ask the magnitude, or it may describe the 2004 Indian Ocean tsunami and ask students to identify 9.1 from several numerical options.
Quick revision: Indian Ocean Tsunami — 2004 — Magnitude 9.1 according to the source.
Therefore option (c), 9.1, is correct.

स्रोत के अनुसार सही उत्तर 9.1 है। Book बताती है कि 2004 Indian Ocean Tsunami की magnitude 9.1 थी। Explanation में source यह भी कहती है कि tsunami magnitude, जिसे वहां Mt लिखा गया है, एक number है जिसका उपयोग different earthquakes द्वारा generated tsunamis के sizes compare करने के लिए किया जाता है। इसलिए main source-supported chain है: Indian Ocean Tsunami — 2004 — Magnitude 9.1; Tsunami Magnitude/Mt — Different Tsunamis के Size को Compare करने के लिए उपयोग होने वाला Number। 7.4, 8.9 और 8.6 distractors हैं। यह World GK और disaster-related numerical fact का combination है। Current project का उद्देश्य book को faithfully extract करना है, इसलिए 9.1 figure को source के अनुसार ही preserve किया गया है। Source explanation में 'tsunami magnitude or Mt' terminology use करती है; इसे किसी अन्य measurement discussion से replace नहीं किया गया है। Book इस particular entry में tsunami की exact date, epicentre, affected countries, death toll, earthquake depth या tectonic details नहीं देती। इसलिए वे facts source-derived information के रूप में नहीं जोड़े गए हैं। Future examination में सीधे पूछा जा सकता है कि 2004 Indian Ocean Tsunami की magnitude कितनी थी या event का description देकर correct numerical value select करने को कहा जा सकता है। Quick revision: Indian Ocean Tsunami — 2004 — Magnitude 9.1। इसलिए विकल्प (c), 9.1, सही उत्तर है।