UPSC Prelims 2023— Question 5

This question tests Rann of Kutch and Sea-Level Change under Coastal Geomorphology. The central point is Rann of Kutch is an extensive marsh/salt-marsh landscape associated with repeated marine incursions and sea-level change. Option A: Bhitarkanika Mangroves. This distractor is not the keyed answer because it conflicts with the specific factual relationship, chronology, institutional role, geographic association or conceptual distinction tested in the question. Option B: Marakkanam Salt Pans. This distractor is not the keyed answer because it conflicts with the specific factual relationship, chronology, institutional role, geographic association or conceptual distinction tested in the question. Option C: Naupada Swamp. This distractor is not the keyed answer because it conflicts with the specific factual relationship, chronology, institutional role, geographic association or conceptual distinction tested in the question. Option D: Rann of Kutch. This is the keyed answer because it matches the governing fact or concept: Rann of Kutch is an extensive marsh/salt-marsh landscape associated with repeated marine incursions and sea-level change. The question should be approached by checking each statement independently rather than accepting a familiar phrase at face value. This is particularly important in UPSC questions where a single incorrect institutional attribution, location, chronology, absolute word or causal link can invalidate an otherwise plausible option. The broader revision takeaway is to connect the keyed answer with the underlying concept rather than memorizing only the letter. The options also illustrate how UPSC constructs distractors by mixing correct facts with one altered detail. In revision, candidates should therefore retain both the positive fact and the nearest contrasting fact so that the same concept can be recognized when the framing changes in another year.