Puilunchristin wrote:
275. El Nino, the periodic abnormal warming of the sea surface off Peru, a phenomenon in which changes in the ocean and atmosphere combine allowing the warm water that has accumulated in the western Pacific to flow back to the east. OG16 SC109
(A) a phenomenon in which changes in the ocean and atmosphere combine allowing the warm water that has accumulated- NO VERB
(B) a phenomenon where changes in the ocean and atmosphere are combining to allow the warm water that is accumulating
NO VERB (C)
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