Which of the following is NOT true: During El Niño years, upwelling off the coast of South America is suppressed. During
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Which of the following is NOT true: During El Niño years, upwelling off the coast of South America is suppressed. During
Which of the following is NOT true: During El Niño years, upwelling off the coast of South America is suppressed. During normal conditions, a mass of warm water is situated just off the coast of South America. Walker Circulation is caused by contrasts in atmospheric pressure in the Pacific: low-pressure in the western Pacific and high-pressure areas in the east is normal. For the past several thousand years, a strong El Niño event has occurred once every two to eight years or so. Scientists do not quite understand what specifically triggers an El Niño event.
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