What is the global weather phenomenon characterized by unusually warm ocean temperatures in the equatorial pacific?
a) tsunami
b) photosynthesis
c) la niña
d) el niño

D) El Nino

Explanation:

Condition for El Nino effect:

In the central and eastern equatorial pacific sea surface, the sun makes the water hot, especially on the surface of the ocean.Usually, trade winds push the warm surface water from South-America to the westward towards Indonesia.This process lets the cooler water rise towards the surface of the ocean near south-America. Where ever the surface of the ocean is hot more clouds form and naturally more rain falls in that part of the world.

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