Final answer:
The process that causes El Niño-Southern Oscillation events is a combination of factors, including increased movement of warm ocean water from the central and east-central equatorial Pacific, higher temperatures in the Pacific near Australia, and weak prevailing winds in the Southern Hemisphere.
Step-by-step explanation:
The process that causes El Niño-Southern Oscillation (ENSO) events is a combination of factors, including increased movement of warm ocean water from the central and east-central equatorial Pacific,
higher temperatures in the Pacific near Australia, and weak prevailing winds in the Southern Hemisphere.
These events are also associated with drought conditions in South America.