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UPSC 2020: Consider the following statements: 1. Jet streams occur in the Northern Hemisphere only. 2. Only some cyclones develop an eye. 3. The temperature inside the eye of a cyclone is nearly 10°C lesser than that of the surroundings. Which of the statements given above is/are correct?
(a)1 only
(b)2 and 3 only
(c)2 only
(d)1 and 3 only
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Not attemptedCorrect Answer: (c) 2 only
Jet streams occur in BOTH hemispheres (polar and subtropical jets), making Statement 1 false. An eye forms only in sufficiently intense tropical cyclones, so Statement 2 is correct. The eye is actually warmer—about 5-10 °C hotter aloft—than the surrounding storm cloud tops; Statement 3, claiming it is colder, is false. Hence only Statement 2 is correct. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Jet_stream?utm_source=openai))
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What is the correct answer to this UPSC 2020 Geography question?▼
The correct answer is option (c): 2 only. 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 2020, GS Paper 1, as Question 99. 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.