What is the name of the phenomenon where the wind direction changes with altitude? MCQ with Answer and Explanation

What is the name of the phenomenon where the wind direction changes with altitude?
A. Wind shear
B. Wind veering
C. Wind gradient
D. Wind backing
Answer: Option A
Solution (By JKExamLibrary)
Wind shear is the change in wind speed and/or direction with altitude. It is an important factor in aviation and weather forecasting, especially for thunderstorm development.

This question belongs to: Geography GK Climate and Weather

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Question #1 Report Error
What is the name of the phenomenon where there is a large-scale pattern of sea level pressure differences between the Arctic and the mid-latitudes?
A. Madden-Julian Oscillation
B. North Atlantic Oscillation
C. Pacific-North American Pattern
D. Arctic Oscillation

Correct Answer: Option D


Explanation:
The Arctic Oscillation (AO) is a large-scale climate pattern of sea level pressure differences between the Arctic and the mid-latitudes of the Northern Hemisphere. It affects weather patterns across the entire Northern Hemisphere.

This question belongs to: Geography GK Climate and Weather
Question #2 Report Error
The Indian monsoon is primarily driven by:
A. Temperature difference between land and ocean
B. The Coriolis effect only
C. The Jet stream only
D. Volcanic activity

Correct Answer: Option A


Explanation:
The Indian monsoon is driven by the differential heating of the Asian landmass and the Indian Ocean, creating a large pressure gradient that causes moisture-laden winds to blow from the sea to the land.

This question belongs to: Geography GK Climate and Weather
Question #3 Report Error
A negative phase of the North Atlantic Oscillation (NAO) is associated with:
A. Weaker than normal Azores High and Icelandic Low
B. Cooler than normal waters in the North Atlantic
C. Stronger than normal Azores High and Icelandic Low
D. Warmer than normal waters in the North Atlantic

Correct Answer: Option A


Explanation:
A negative NAO phase is characterized by weaker than normal Azores High and Icelandic Low, leading to weaker westerly winds, colder and drier winters in northern Europe, and milder and wetter winters in southern Europe.

This question belongs to: Geography GK Climate and Weather