What is the name of the phenomenon where the atmospheric pressure in the Arctic is lower than normal and in the mid-latitudes is higher than normal? MCQ with Answer and Explanation

Question

What is the name of the phenomenon where the atmospheric pressure in the Arctic is lower than normal and in the mid-latitudes is higher than normal?

A. Arctic Oscillation

B. Pacific-North American Pattern

C. North Atlantic Oscillation

D. Madden-Julian Oscillation

Answer: Option A

Solution (By JKSSB Mock Tests)

The Arctic Oscillation is a large-scale pattern of sea level pressure differences between the Arctic and the rest of the Northern Hemisphere.

This question belongs to: Geography GK Climate and Weather

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Question #1

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Which of the following regions experiences the highest diurnal temperature range in India?

A. Eastern Coast

B. Thar Desert

C. Himalayas

D. Western Ghats

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Correct Answer: Option B

Explanation:
The Thar Desert experiences the highest diurnal temperature range (difference between day and night temperatures) due to clear skies and low humidity.

This question belongs to: Geography GK Climate and Weather

Question #2

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Which of the following is the primary reason for the high rainfall in Mawsynram?

A. Cyclones

B. Frontal systems

C. Orographic effect

D. Convection

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Correct Answer: Option C

Explanation:
Mawsynram receives the highest rainfall due to the orographic effect of the Khasi Hills, which funnel moisture from the Bay of Bengal.

This question belongs to: Geography GK Climate and Weather

Question #3

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Which of the following is a major factor in the formation of the Madden-Julian Oscillation?

A. Sea surface temperature differences between the western and eastern Pacific

B. Convection in the Indian and Pacific Oceans

C. Sea surface temperature differences between the northern and southern Pacific

D. Convection in the Atlantic Ocean

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Correct Answer: Option B

Explanation:
The Madden-Julian Oscillation is a large-scale pattern of convection that moves eastward across the Indian and Pacific Oceans, influencing weather patterns.

This question belongs to: Geography GK Climate and Weather

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