During an El Niño event, the Walker Circulation: MCQ with Answer and Explanation

During an El Niño event, the Walker Circulation:
A. Strengthens
B. Weakens
C. Remains unchanged
D. Reverses direction
Answer: Option B
Solution (By JKSSB Mock Tests)
During an El Niño event, the Walker Circulation weakens as the trade winds weaken, causing the warm water to shift eastward across the Pacific. This can lead to droughts in Australia and floods in South America.

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Practice More Climate and Weather Questions

Question #1
What is the name of the phenomenon where the temperature in the troposphere decreases with altitude?
A. Temperature inversion
B. Solar radiation absorption
C. Greenhouse effect
D. Adiabatic cooling

Correct Answer: Option D


Explanation:
The decrease in temperature with altitude in the troposphere is due to adiabatic cooling, where air expands and cools as it rises.

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Question #2
The 'Loo' wind originates from which region?
A. Himalayas
B. Bay of Bengal
C. Thar Desert
D. Arabian Sea

Correct Answer: Option C


Explanation:
The Loo originates from the Thar Desert region and blows over the northern plains of India during summer.

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Question #3
Which of the following is the best definition of 'climate'?
A. The long-term average of weather conditions in a region
B. The average temperature of a region
C. The study of climate
D. The short-term state of the atmosphere

Correct Answer: Option A


Explanation:
Climate is the long-term average of weather patterns in a specific region, typically over a period of 30 years or more. It includes averages and variations of temperature, precipitation, and other meteorological variables.

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