EI-Nino is a complex weather system that appears once every three to ______ years, bringing drought, floods and other weather extremes to different parts of the world.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. seven.
- El Nino, the warming of waters in the Pacific Ocean near South America, is generally associated with weakening monsoon winds and dry weather in India.
- El Nino is typically known as the warm phase (a band of warmer water spreading from west to east in the equatorial Pacific Ocean).