Weather Events: El Nino and La Nina

The video explains the global impacts of El Nino and La Nina, which are weather events occurring every two to seven years. El Nino results from weakened trade winds, causing ocean warming, while La Nina is characterized by strong trade winds, leading to colder ocean waters. These phenomena can lead to extreme weather conditions like flooding, droughts, and increased cyclones and hurricanes.

What are some of the effects of weather events mentioned in the video?

• They result in fewer cyclones and hurricanes.

• They lead to a decrease in global temperatures.

• They can cause extreme flooding and drought.

• They have no impact on weather patterns.

How often do El Nino and La Nina events occur?

• Every century

• Every decade

• Every two to seven years

• Every year

What happens to the trade winds during an El Nino event?

• They become stronger.

• They remain unchanged.

• They weaken.

• They reverse direction.

During an El Nino event, what happens to the ocean waters off the east coast?

• They cool down significantly.

• They remain at the same temperature.

• They are pushed further west.

• They warm up.

What characterizes a La Nina event?

• Reversal of trade winds and water temperature.

• Stronger trade winds and colder waters.

• No change in trade winds and water temperature.

• Weaker trade winds and warmer waters.