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. El Niño
B. Pacific Decadal Oscillation
C. Southern Oscillation
D. La Niña
Answer: Option A
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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Practice More Climate and Weather Questions

Question #1
Which of the following states receives the most rainfall during the southwest monsoon?
A. Kerala
B. Punjab
C. Rajasthan
D. Tamil Nadu

Correct Answer: Option A


Explanation:
Kerala receives the highest rainfall during the southwest monsoon (June-September) because it is the first state to be hit by the monsoon winds, with the Western Ghats causing orographic rainfall.

This question belongs to: Geography GK Climate and Weather
Question #2
Which of the following is a characteristic of a steppe climate?
A. Hot temperatures year-round
B. Cold temperatures and snowfall
C. High rainfall
D. Low rainfall and semi-arid conditions

Correct Answer: Option D


Explanation:
Steppe climates (Köppen BSh/BSk) are semi-arid, characterized by low rainfall (250-500 mm per year) and grasslands, often transitioning between deserts and more humid climates.

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Question #3
The Earth's atmosphere is heated mainly by:
A. Volcanic eruptions
B. Direct solar radiation
C. Longwave terrestrial radiation
D. Conduction from the Earth's core

Correct Answer: Option C


Explanation:
The Earth's atmosphere is mainly heated by longwave terrestrial radiation (infrared radiation) emitted by the Earth's surface after it absorbs solar radiation. The atmosphere is mostly transparent to shortwave solar radiation.

This question belongs to: Geography GK Climate and Weather