Which statement about El Niño's regional weather effects is supported by the material?

Which statement about El Niño's regional weather effects is supported by the material?

• A. El Niño can influence weather patterns across multiple regions around the world.
• B. El Niño affects only the Pacific region.
• C. El Niño has no impact on rainfall.
• D. El Niño causes global cooling.

Answer: (A)

El Niño can alter weather far beyond the Pacific. When sea-surface temperatures rise in the eastern Pacific, it shifts large-scale atmospheric circulation patterns, which redirects rainfall and storm tracks to different regions around the world. That means its effects aren’t confined to one area; many regions experience unusual weather—wetter in some places and drier in others—depending on the season and location. This global reach is why the statement that El Niño can influence weather patterns across multiple regions worldwide is the best description. Context helps: you’ll often see wetter conditions and floods in parts of the Americas, droughts in Australia and parts of Southeast Asia, and broader shifts in monsoon behavior or storm activity in other regions during El Niño years. It also means rainfall can be affected in many places, not just a single region, and it typically does not drive global cooling—El Niño is associated with warmer global average temperatures overall.

El Niño can alter weather far beyond the Pacific. When sea-surface temperatures rise in the eastern Pacific, it shifts large-scale atmospheric circulation patterns, which redirects rainfall and storm tracks to different regions around the world. That means its effects aren’t confined to one area; many regions experience unusual weather—wetter in some places and drier in others—depending on the season and location. This global reach is why the statement that El Niño can influence weather patterns across multiple regions worldwide is the best description.

Context helps: you’ll often see wetter conditions and floods in parts of the Americas, droughts in Australia and parts of Southeast Asia, and broader shifts in monsoon behavior or storm activity in other regions during El Niño years. It also means rainfall can be affected in many places, not just a single region, and it typically does not drive global cooling—El Niño is associated with warmer global average temperatures overall.