Final answer:
El Niño has an effect on the hydrosphere by causing increased rainfall and flooding in some regions.
Step-by-step explanation:
El Niño is a warm ocean current that flows off the west coast of South America. It causes changes in weather patterns around the world and can lead to extreme weather events in certain regions. One effect that El Niño has on the hydrosphere is increased rainfall and flooding in some regions. This can be particularly risky for economies that rely on farming and fishing in these affected areas.
Learn more about El Niño