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Q112 (IAS/2001) Geography › World Physical Geography › Atmospheric pressure winds Answer Verified

Which of the following weather conditions is indicated by a sudden fall in barometer reading ?

Result
Your answer:  ·  Correct: A
Explanation

A sudden fall in the barometer indicates a rapid drop in atmospheric pressure and typically signals the approach of a low‑pressure system or depression, which brings unstable conditions such as clouds, wind, rain or storms [1]. Meteorological references note that severe storms appear as deep, wide dips on a barograph and that falling readings often presage rain or storms, while rising readings generally indicate fair, improving weather [1]. Textbook pressure thresholds also link pressures below about 1000 mb with depressions, supporting that a sharp barometric decline corresponds to stormy or disturbed weather [2]. Thus, the best choice among the options is 'Stormy weather.'

Sources

  1. [1] https://education.nationalgeographic.org/resource/barometer/
  2. [2] Exploring Society:India and Beyond ,Social Science-Class VII . NCERT(Revised ed 2025) > Chapter 2: Understanding the Weather > THINK ABOUT IT > p. 35
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