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GS Paper IUPSC Prelims 2019
Geomorphology
Question No. 423Interactive Test Mode
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Q423. Consider the following pairs : | | Glacier | River | |---|---|---| | 1. | Bandarpunch | Yamuna | | 2. | Bara Shigri | Chenab | | 3. | Milam | Mandakini | | 4. | Siachen | Nubra | | 5. | Zemu | Manas | Which of the pairs given above are correctly matched ?

Consider the following pairs :

GlacierRiver
1.BandarpunchYamuna
2.Bara ShigriChenab
3.MilamMandakini
4.SiachenNubra
5.ZemuManas

Which of the pairs given above are correctly matched ?

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2019 • Geography

Correct Answer: Option (A) — 1, 2 and 4

Concept & Option Breakdown

Standard Reference Verified

• Pair 1 is correctly matched: Bandarpunch Glacier in Uttarakhand is the source of the Yamuna River. • Pair 2 is correctly matched: Bara Shigri Glacier in Himachal Pradesh feeds the Chandra River, which merges with the Bhaga to form the Chenab. • Pair 3 is incorrectly matched: Milam Glacier feeds the Gori Ganga River (tributary of Sharda/Kali), while Mandakini originates from the Chorabari Glacier. • Pair 4 is correctly matched: Siachen Glacier feeds the Nubra River (a tributary of the Shyok River). • Pair 5 is incorrectly matched: Zemu Glacier in Sikkim is the source of the Teesta River, not the Manas River.

Elimination Heuristic & Exam Approach

Zemu Glacier is famously located in Sikkim and feeds the Teesta, eliminating pair 5 and thus options (c) and (d). Milam feeds Gori Ganga, eliminating (b).

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2019 (Q423)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Geomorphology
Official Answer KeyOption (A) — (a) 1, 2 and 4

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Frequently Asked Questions — UPSC Prelims 2019 Q423

What is the official answer for UPSC Prelims 2019 GS Paper I Question 423 (Geography)?

The official UPSC answer key for this 2019 Geography (Geomorphology) question is Option (A): "(a) 1, 2 and 4". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2019 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Geomorphology". You can explore all repeated questions from Geomorphology in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Geomorphology UPSC Prelims question using option elimination?

Zemu Glacier is famously located in Sikkim and feeds the Teesta, eliminating pair 5 and thus options (c) and (d). Milam feeds Gori Ganga, eliminating (b).

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