Official Answer Key & Detailed Solution
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Official UPSC Answer KeyUPSC Prelims 2005 • Geography
Correct Answer: Option (A) — The Western Ghats are relatively lower in their northern region.
Concept & Option Breakdown
Standard Reference VerifiedAll the given statements represent well-established geographical facts, though the question was debated:
- (a) The Western Ghats have a progressive increase in elevation from north (where average height is 900-1200 m in Maharashtra) to south (exceeding 2000 m in Kerala/Tamil Nadu). Thus, they are relatively lower in their northern section.
- (b) Anamudi (2,695 m) in the Anamalai Hills of Kerala is the highest peak of the Western Ghats.
- (c) The Satpura range lies between the Narmada (to its north) and the Tapi (to its south).
- (d) Both Narmada and Tapi flow westwards through ancient fault troughs / rift valleys.
Elimination Heuristic & Exam Approach
Elevation of the Western Ghats increases systematically from north to south, culminating in the Anamalai Hills (Anamudi).
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