UPSC Previous Year Question | Prelims GS | 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 degrees C lesser than that of the surroundings.

  1. 1 only
  2. 2 and 3 only
  3. 2 only
  4. 1 and 3 only

Answer

Correct Answer

2 only

Explanation

Jet streams occur in both hemispheres, so statement 1 is wrong. Only intense tropical cyclones develop a well-defined eye, so statement 2 is correct. The eye is warmer, not cooler, than its surroundings, so statement 3 is wrong.

Topics: climatology & atmosphere, geography, jet streams and cyclones, physical geography