Question

Which of the following change in sea surface temperature best describes an El Nino event?

waters in the eastern Pacific steadily get warmer
waters in the eastern Pacific steadily get cooler
waters in the eastern Pacific show no change in temperature
Waters in the eastern Pacific fluctuate daily in temperature

Answer 1

Waters in the eastern Pacific steadily gets warmer

El Nino is caused by the periodic shift in wind speed and direction in the tropical eastern Pacific which leads to changes in sea Surface temperatures.