CLIMATE OF INDIA
EL NINO AND SOUTHERN OSCILLATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What causes El Nino and La Nina? Changes in ____
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the strength of trade winds
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Earth’s tilt
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ocean currents
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the seasons
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Explanation:
Detailed explanation-1: -An El Niño condition occurs when surface water in the equatorial Pacific becomes warmer than average and east winds blow weaker than normal. The opposite condition is called La Niña. During this phase of ENSO, the water is cooler than normal and the east winds are stronger.
Detailed explanation-2: -In general, El Niño conditions lead to wetter, snowier conditions in Amarillo and cooler maximum temperatures during the winter. La Niña conditions lead to drier and warmer temperatures overall, with notable extreme cold spells. In stronger El Niño or La Niña episodes, these trends are even greater.
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