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?

[UPSC Civil Services Exam – 2020 Prelims]

(a) 1 only

(b) 2 and 3 only

(c) 2 only

(d) 1 and 3 only


Answer: (c)

Explanation:

  • The occurrence of jet streams is not limited to just one hemisphere and can be observed in both the Northern and Southern Hemispheres, making statement 1 incorrect.
  • While mature extra-tropical cyclones often possess well-formed eyes, the presence of an eye is not a necessary attribute of these storms. However, rapidly intensifying storms can develop a small and circular eye known as a pinhole eye, making statement 2 correct.
  • Contrary to statement 3, the eye of a tropical cyclone is generally warmer, not colder, and it is this warmth that drives the storm.

Therefore, option (c) is the correct answer.

Consider the following statements:                                                                   The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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Consider the following statements:                                                         The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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