Effect of Meteorological Phenomena over Climate MCQs(Such as Elnino-Lanio etc)

1. What is El Niño characterized by?

A) Cooler-than-average sea surface temperatures in the central and eastern Pacific Ocean
B) Warmer-than-average sea surface temperatures in the central and eastern Pacific Ocean
C) A decrease in tropical cyclone activity
D) Increased rainfall in the Indian subcontinent

Answer: B) Warmer-than-average sea surface temperatures in the central and eastern Pacific Ocean

2. Which weather phenomenon typically results in increased rainfall across the western coast of South America?

A) La Niña
B) El Niño
C) The North Atlantic Oscillation
D) The Pacific Decadal Oscillation

Answer: B) El Niño

3. La Niña is generally associated with:

A) Drier conditions in Australia and Indonesia
B) Warmer temperatures in the central and eastern Pacific Ocean
C) Increased hurricane activity in the Atlantic
D) Higher-than-average precipitation in the western coast of South America

Answer: A) Drier conditions in Australia and Indonesia

4. During an El Niño event, which of the following is a common climate impact on the southeastern United States?

A) Increased drought conditions
B) Cooler temperatures and more snow
C) Increased rainfall and warmer temperatures
D) Decreased hurricane activity

Answer: C) Increased rainfall and warmer temperatures

5. Which phenomenon is associated with a weakening of the trade winds and a shift of warm ocean waters eastward across the Pacific?

A) El Niño
B) La Niña
C) The Arctic Oscillation
D) The Madden-Julian Oscillation

Answer: A) El Niño

6. What effect does La Niña typically have on Atlantic hurricane activity?

A) Decreased activity
B) Increased activity
C) No significant effect
D) A shift in hurricanes to the Pacific Ocean

Answer: B) Increased activity

7. How does El Niño affect global weather patterns?

A) It generally causes cooler and wetter conditions in the tropics and warmer conditions in the mid-latitudes.
B) It usually leads to warmer and drier conditions in the tropics and cooler, wetter conditions in the mid-latitudes.
C) It has no significant impact on global weather patterns.
D) It only affects local weather patterns near the equator.

Answer: B) It usually leads to warmer and drier conditions in the tropics and cooler, wetter conditions in the mid-latitudes.

8. Which climatic condition is associated with the opposite effects of El Niño, such as increased upwelling and cooler sea surface temperatures in the central and eastern Pacific?

A) The North Atlantic Oscillation
B) The Pacific Decadal Oscillation
C) La Niña
D) The Indian Ocean Dipole

Answer: C) La Niña

9. What is a common impact of La Niña on the monsoon season in India?

A) Increased monsoon rainfall
B) Decreased monsoon rainfall
C) No impact on monsoon rainfall
D) Increased frequency of cyclones

Answer: B) Decreased monsoon rainfall