Multiple choice

For short-term climatic predictions, which of the following events, detected in the last decade, is associated with occasional weak monsoon rains in the Indian sub-continent?

  1. La Nina

  2. Movement of jet stream

  3. EI Nino and southern oscillations

  4. Greenhouse effect at global level
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Movement of jet stream affects the monsoon rain in India. Jet stream is a strong and rapidly moving circumpolar westerly air extending upto troposphere, having meandering course. The upper air westerly jet stream bifurcates into two as it flows over Indian sub-continent.

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