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Which one of the following is not the characteristic feature of ‘El

June 1, 2025 by rawan239

Which one of the following is *not* the characteristic feature of ‘El Ni\u00f1o’ phenomenon impacting the Indian monsoon?

It replaces the cold Peruvian current

Appearance of cold current in East Pacific region

Results in reduction of planktons

Results in drought or weak monsoon in India

This question was previously asked in

UPSC CBI DSP LDCE – 2023

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El Niño is characterized by the warming of the surface waters in the central and eastern tropical Pacific Ocean. This *replaces* the usual cold Peruvian current, not leads to the appearance of a cold current. Therefore, the statement “Appearance of cold current in East Pacific region” is incorrect.

El Niño is a phenomenon of warm sea surface temperatures in the eastern equatorial Pacific. It is generally associated with weak monsoon in India and reduction in plankton production due to suppressed upwelling of nutrient-rich cold water.

El Niño is part of the El Niño–Southern Oscillation (ENSO) cycle. Its opposite phase, La Niña, is characterized by colder than average sea surface temperatures in the central and eastern tropical Pacific and is generally associated with a stronger monsoon in India.

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