The El-Nino Phenomenon occurs in  

The correct answer is Pacific Ocean.

Key Points El-nino:

• El Niño is a weather pattern that occurs in the Pacific Ocean.
• During this time, unusual winds cause warm surface water from the equator to move east, toward Central and South America.
• El Niño can cause more rain than usual in South and Central America and in the United States.
• El Niño occurs in the Pacific Ocean, but it is so big that it affects weather all over the world.