gs1medium

Westerlies in the southern hemisphere are stronger and more persistent than in the northern hemisphere. Why?

  1. 1.Southern hemisphere has less landmass as compared to the northern hemisphere.
  2. 2.Coriolis force is higher in the southern hemisphere as compared to the northern hemisphere.

Which of the statements given above is/are correct?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
▶ Answer & Explanation

Correct answer: A. 1 only

The greater extent of oceans in the Southern Hemisphere compared to the Northern Hemisphere reduces the frictional effect on the westerly winds, allowing them to blow with greater strength and persistence. Additionally, the Coriolis force is dependent on latitude, not hemisphere, and is a factor in wind deflection globally.

Source: UPSC gs1 2011

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