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UPSC 2020: With reference to Ocean Mean Temperature (OMT), which of the following statements is/are correct ?
(a)1 only
(b)2 only
(c)Both 1 and 2
(d)Neither 1 nor 2
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Not attemptedCorrect Answer: (b) 2 only
The 26 °C isotherm that defines OMT lies ~50-100 m deep (≈59 m on average during Jan–Mar in the south-western Indian Ocean), not 129 m; so statement 1 is incorrect. IITM studies have shown that OMT measured in Jan–Mar can predict whether the subsequent southwest monsoon rainfall will be above or below the long-term mean, so statement 2 is correct. Thus only statement 2 is right → option (b). ([notes.saralupsc.com](https://notes.saralupsc.com/upsc-pyq-on-oceanography/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2020 Geography question?▼
The correct answer is option (b): 2 only. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Oceanography question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2020, GS Paper 1, as Question 93. It falls under Geography > Oceanography.
What is the difficulty level of this UPSC question?▼
This question is rated "difficult". It is a challenging question that demands deep subject knowledge and analytical thinking.
How many UPSC Prelims questions have been asked from Oceanography?▼
UPSC has asked 21 questions from Oceanography (under Geography) across multiple years. Visit the topic page to see the full list and year-wise trends.