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UPSC 2002: For short-term climate prediction, which one of the following events, detected in the last decade, is associated with occasional weak monsoon rains in the Indian sub-continent?
(a)La Niña
(b)Movement of Jet Streams
(c)El Niño and Southern Oscillations
(d)Greenhouse effects on global level
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Not attemptedCorrect Answer: (c) El Niño and Southern Oscillations
El Niño events, measured together with the Southern Oscillation (ENSO), disturb Walker circulation and suppress convection over the Indian Ocean, often leading to deficient southwest-monsoon rainfall and weak monsoon years in India. La Niña generally has the opposite effect, while jet-stream shifts and greenhouse warming are longer-term phenomena. ([testbook.com](https://testbook.com/ias-preparation/el-nino-effect?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2002 Geography question?▼
The correct answer is option (c): El Niño and Southern Oscillations. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Atmosphere & Climatology question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2002, GS Paper 1, as Question 12. It falls under Geography > Atmosphere & Climatology.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Atmosphere & Climatology?▼
UPSC has asked 70 questions from Atmosphere & Climatology (under Geography) across multiple years. Visit the topic page to see the full list and year-wise trends.