El Niño typically lasts 8-10 years.

El Niño typically lasts 8-10 years.

• A. True
• B. False
• C. It lasts 1-2 years
• D. The duration is 8-10 months

Answer: (D)

El Niño is a short- to medium-term climate pattern that involves warming of tropical Pacific sea-surface temperatures and leads to weather changes around the world. This warming lasts for months, not years. Most El Niño events run about nine to twelve months, with some lasting a bit longer—often up to a year and a half. Because of that, stating a duration of 8-10 years would be far too long. The option that the duration is 8-10 months fits with how long these events typically persist, making it the best match among the choices. The other options imply incorrect timescales or are too vague to pinpoint the usual duration.

El Niño is a short- to medium-term climate pattern that involves warming of tropical Pacific sea-surface temperatures and leads to weather changes around the world. This warming lasts for months, not years. Most El Niño events run about nine to twelve months, with some lasting a bit longer—often up to a year and a half. Because of that, stating a duration of 8-10 years would be far too long. The option that the duration is 8-10 months fits with how long these events typically persist, making it the best match among the choices. The other options imply incorrect timescales or are too vague to pinpoint the usual duration.