Question

multiple choice question
la niña events occur when ______
○ the normal west - east displacement of pressure systems becomes a north - south displacement
○ ocean surface temperatures are above normal off the coast of peru
○ ocean surface temperatures drop below normal off the coast of peru

Explanation:

La Niña events are characterized by cooler - than - normal sea surface temperatures in the central and eastern tropical Pacific Ocean, off the coast of Peru.

Answer:

ocean surface temperatures drop below normal off the coast of Peru