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

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

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The Indian Meteorological Department (IMD) was established in:
A. 1900
B. 1875
C. 1947
D. 1850

Correct Answer: Option B


Explanation:
The India Meteorological Department (IMD) was established in 1875 as the national meteorological service of India.

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Which of the following is the primary reason for the formation of the Indian monsoon?
A. Land-sea temperature contrast
B. ITCZ shift
C. All of the above
D. El Niño

Correct Answer: Option C


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The Indian monsoon is caused by a combination of land-sea temperature contrast, the shift of the ITCZ, and global phenomena like El Niño.

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Which place in India receives the highest average annual rainfall?
A. Shillong
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D. Cherrapunji

Correct Answer: Option B


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Mawsynram in Meghalaya receives the highest average annual rainfall in the world (over 11,000 mm) due to its location in the funnel-shaped Khasi Hills.

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