Understanding El Niño and La Niña

What is El Niño primarily recognized as?

• A regional festival

• A type of storm

• A climate pattern

• A seasonal change

How often does El Niño occur?

• Every decade

• Every year

• Every 2-7 years

• Every 5-10 years

Which region experienced severe mudslides during the 1997-1998 El Niño?

• California

• Australia

• Ecuador

• Indonesia

What contrasting effects can El Niño have on different regions?

• Snow and heatwaves

• Volcanic eruptions and calm weather

• Drought and floods

• Earthquakes and tsunamis

What normal condition is altered during an El Niño year?

• Earth's rotation speed

• Solar radiation

• Trade winds strength

• Ocean currents

What happens to the trade winds during an El Niño year?

• They stop completely

• They become weaker

• They reverse direction

• They become stronger

What is La Niña primarily considered as?

• A similar event to El Niño

• A weaker form of El Niño

• None of the above

• The opposite of El Niño

During La Niña, what happens to the trade winds compared to normal years?

• They are much weaker

• They are slightly stronger

• They change direction

• They are much stronger

Which area experiences more upwelling during La Niña?

• Western Pacific

• Eastern Pacific

• Northern Atlantic

• Southern Indian Ocean

What is the effect of La Niña on Asia's western waters?

• Water levels decrease

• Warmer water accumulates

• Cooler water accumulates

• No significant change