During an el niño year, there is increased precipitation in the southern united states, but the north is warmer and dry. where does the moisture causing the precipitation in the south come from? a) the pacific ocean b) the gulf of mexico c) the polar jet stream d) the southern atlantic ocean

El Nino is caused by water at the equator near the Eastern Pacific ocean becoming warm. This warmness causes the water to vaporize and rise up. Similarly, the water also makes the atmosphere warm, allowing the moisture-rich air to develop into fierce rains, ultimately causing the increased precipitation during that year. The El Nino year 1997 is a famous example of this event.

The answer would be b. it is a learned trait