Understanding El Nino and La Nina

The video explains El Nino, a weather pattern affecting the Pacific Ocean and global climate. It describes normal weather patterns, how El Nino disrupts them, and its global impacts, including increased rainfall in some areas and drought in others. The transition to La Nina, the opposite effect, is also covered.

What is the full name of El Nino?

• ENSO: El Nino Symmetrical Oscillation

• ENSO: El Nino Systematic Oscillation

• ENSO: El Nino Seasonal Oscillation

• ENSO: El Nino Southern Oscillation

In a normal weather pattern, what causes the west coast of South America to be dry?

• High humidity

• Cold seawater

• Warm seawater

• Frequent rainfall

What happens when the trade winds decrease in strength during El Nino?

• Less warm seawater is blown towards the west

• More cold water rises in the eastern Pacific

• The temperature difference between the eastern and western Pacific increases

• The air pressure difference increases

How often does El Nino typically occur?

• Every 5 to 10 years

• Every 1 to 3 years

• Every 2 to 7 years

• Every 10 to 15 years

Why did South American fishermen name the phenomenon El Nino?

• It brings abundant fish

• It causes heavy snowfall

• It occurs during the summer

• It frequently occurs around Christmas

What is the opposite effect of El Nino called?

• El Niño Oscillation

• La Nino

• El Nina

• La Nina

During La Nina, what happens to the temperature difference between the eastern and western Pacific?

• It decreases

• It remains the same

• It increases

• It fluctuates randomly

Which areas are likely to experience increased rainfall during an El Nino event?

• Northern Europe

• Southern Africa and Australia

• Peru and Ecuador

• Indonesia and India

What is a potential consequence of droughts caused by El Nino?

• Increased fish population

• More hurricanes in the Atlantic

• Forest fires

• Decreased food prices

How does El Nino affect hurricane activity in the Atlantic and Pacific Oceans?

• Increases hurricanes in both oceans

• Increases hurricanes in the Atlantic and decreases in the Pacific

• Decreases hurricanes in both oceans

• Decreases hurricanes in the Atlantic and increases in the Pacific