The two important climate phenomena that are related to the changes in ocean temperature and in the Pacific Ocean are called El Niño and La Niña. El Niño occurs when ocean water becomes warmer than normal, and La Niña happens when they become cooler than normal. These changes strongly affect the weather patterns across the world. It affects rainfall, drought, flood, and temperature in India and other countries. Understanding El Niño and La Niña helps us explain climate variations and monsoon behavior. To help you in your exam preparations, we have prepared MCQs for you to help you in your exam preparations.