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Question No. 408Interactive Test Mode
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Q408. In the map shown rivers labelled as 1, 2, 3 and 4 respectively:

In the map shown rivers labelled as 1, 2, 3 and 4 respectively:

Official UPSC Question Diagram / Map
UPSC Prelims 1997 Geography (Geomorphology) Question 408 Diagram
Select the correct option below (or cross out options to eliminate)

Official Answer Key & Detailed Solution

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Click any option above to test yourself under exam conditions, or reveal the explanation directly.

Official UPSC Answer KeyUPSC Prelims 1997 • Geography

Correct Answer: Option (A) — Kosi, Gomti, Ghaghara and Gandak

Concept & Option Breakdown

Standard Reference Verified

The map depicts tributaries of the Ganga across the northern plains:

  • 1 is the Kosi (easternmost among the set, in northern Bihar)
  • 4 is the Gomati (originating in UP plains)
  • 3 is the Ghaghara (Sarju/Karnali system)
  • 2 is the Gandak (flowing from Nepal through north Bihar).
Elimination Heuristic & Exam Approach

1 is the easternmost tributary flowing into Bihar, which is the Kosi River.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1997 (Q408)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Geomorphology
Official Answer KeyOption (A) — Kosi, Gomti, Ghaghara and Gandak

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Frequently Asked Questions — UPSC Prelims 1997 Q408

What is the official answer for UPSC Prelims 1997 GS Paper I Question 408 (Geography)?

The official UPSC answer key for this 1997 Geography (Geomorphology) question is Option (A): "Kosi, Gomti, Ghaghara and Gandak". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1997 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?

1 is the easternmost tributary flowing into Bihar, which is the Kosi River.

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