What is the name of the phenomenon where the atmospheric pressure in the eastern Pacific is lower than normal and in the western Pacific is higher than normal? MCQ with Answer and Explanation

What is the name of the phenomenon where the atmospheric pressure in the eastern Pacific is lower than normal and in the western Pacific is higher than normal?
A. La Niña
B. Pacific Decadal Oscillation
C. Southern Oscillation
D. El Niño
Answer: Option D
Solution (By JKSSB Mock Tests)
El Niño is associated with lower than normal atmospheric pressure in the eastern Pacific and higher than normal pressure in the western Pacific.

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Practice More Climate and Weather Questions

Question #1
What is the name of the phenomenon where the temperature in the tropopause is constant?
A. Greenhouse effect
B. Temperature inversion
C. Adiabatic cooling
D. Isothermal layer

Correct Answer: Option D


Explanation:
The tropopause is an isothermal layer, meaning the temperature is constant with altitude.

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Question #2
Which of the following climate types is found on the western coast of Europe?
A. Mediterranean
B. Subarctic
C. Humid continental
D. Marine west coast

Correct Answer: Option D


Explanation:
The western coast of Europe, including the British Isles and parts of Scandinavia, has a marine west coast climate (Cfb), characterized by mild winters, cool summers, and abundant rainfall due to westerly winds and the Gulf Stream.

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Question #3
Which of the following is a characteristic of a polar continental air mass?
A. Cold and humid
B. Warm and humid
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D. Cold and dry

Correct Answer: Option D


Explanation:
Polar continental air masses are cold and dry, originating over snow-covered landmasses in polar or subarctic regions. They bring cold, stable, and dry weather.

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