Correct answer: (c) Bengal Delta
Explanation
- A
Krishna-Godavari Delta
The Krishna–Godavari delta is an active/growing east-coast delta. ‘Moribund delta’ is not its standard subdivision name in this question.
- B
Mahanadi Delta
The Mahanadi delta (Odisha) is not the textbook ‘moribund delta’ of Bengal school geography.
- C
Bengal Delta
Bagh’s/ Bagchi’s Bengal delta is classically divided into moribund, mature and active parts. The moribund delta is the dead/dying western old Ganga–Bhagirathi spill area of the Bengal delta (Nadia–Murshidabad type tracts). That is why (c) is the official key.
- D
Cauvery Delta
The Cauvery delta is a separate, still-evolving Tamil Nadu delta, not this subdivision.
Summary. Official key is (c). ‘Moribund delta’ is a subdivision of the Bengal (Ganga–Brahmaputra) delta — the decaying western old delta — not Krishna–Godavari, Mahanadi or Cauvery.
Same topic · past papers
UPPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.
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2018 · Q33 · UPPGS
At the mouth of which of the following rivers the 'bird's foot' type delta is formed? -
2021 · Q121 · UPPGS
With reference to Mekong river, which of the following statement/s is/are correct? 1. Mekong rises in Tibetan Plateau 2. Mekong delta is situated in Southern Cambodia. Select the correct answer using the codes given below. Codes: