What is a feature of the Ganga-Brahmaputra delta?

Correct answer: It is one of the largest deltas in the world

Direct answer: Option D is correct. The Ganga and Brahmaputra carry enormous water and sediment and together form the Ganga-Brahmaputra, or Bengal, delta. This is one of the largest delta systems in the world; the Sundarbans occupy a major part of it. The reasoning is: two great rivers bring sediment; deposition occurs near the Bay of Bengal; many distributaries spread the sediment across a very wide, low-lying area; a huge delta results. Option A is wrong because this is not India’s smallest delta. Option B is wrong because a delta is made largely of deposited alluvium and is not only dry sand. Option C is wrong because the delta lies on the eastern side near the Bay of Bengal, not the western coast. Option D correctly describes its global size. Memory cue: Ganga–Brahmaputra–Sundarbans means a vast eastern delta.