What is the name of the phenomenon where the trade winds weaken and the equatorial currents reverse? MCQ with Answer and Explanation

What is the name of the phenomenon where the trade winds weaken and the equatorial currents reverse?
A. Pacific Decadal Oscillation
B. La Niña
C. El Niño
D. Southern Oscillation
Answer: Option C
Solution (By JKSSB Mock Tests)
El Niño is characterized by the weakening of the trade winds and the reversal of the equatorial currents in the Pacific.

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What is the name of the boundary between the troposphere and the stratosphere?
A. Thermopause
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C. Tropopause
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Correct Answer: Option C


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The tropopause is the boundary between the troposphere and the stratosphere.

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The 'October Heat' is a phenomenon associated with:
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B. The spring season
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Correct Answer: Option C


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The 'October Heat' refers to the hot and humid weather conditions experienced in northern India during the retreat of the monsoon, with high temperatures and humidity.

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Which of the following is a cold wind that blows in Europe?
A. Mistral
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Correct Answer: Option A


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The Mistral is a strong, cold, and dry wind that blows from the north or northwest through the Rhône Valley in France into the Mediterranean.

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