What is 'EL Nino'? Explain any two features of it

What is ‘EL Nino’? Explain any two features of it.

EL Nino The periodic development of warm ocean current along the coast of Peru as a temporary replacement of the cold Peruvian current, is called EL-Nino.
Features of EL Nino
(i) The presence of the EL-Nino leads to an increase in sea-surface temperatures.
(ii) It weakens the trade winds in the regions and causes heavy rainfall, floods or droughts in different regions of the world.