Final answer:
d. El Niño is a warm ocean current that alters weather patterns worldwide, increasing temperatures and precipitation intensity.
Step-by-step explanation:
d. El Niño is a warm ocean current that flows off the west coast of South America every few years. It changes weather patterns worldwide and may cause extreme weather in some regions. El Niño increases the global average air and ocean temperatures, leading to changes in precipitation patterns.
The intensity of precipitation events, particularly in tropical and high-latitude regions, is likely to increase on average.