Final answer:
During a major ENSO event, water can rise by as much as 20 cm in the Galapagos.
Step-by-step explanation:
During a major ENSO event, water can rise by as much as 20 cm in the Galapagos. This is due to the El NiƱo Southern Oscillation (ENSO), which is a climate pattern characterized by the warming of sea surface temperatures in the central and eastern equatorial Pacific Ocean.