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Match up Numbers With Letters Feature __ is .. during an El Niño. 1. an ocean current…….. It moves to the east 2. the thermocline. ……. It occurs deeper in the eastern Pacific Ocean 3. convection……. It forms further east 4. upwelling. ……It may get "shut off" by the layer of warm water above 5. normal circulation……… The surface winds (trade winds) may reverse 6. the warm pool……... It starts to spread eastward when the trade winds slacken Part 2- discuss the impacts of El Nino and La Nina (8)