Which of the following is the primary reason for the formation of permafrost?
A. Cold temperatures
B. High precipitation
C. Strong winds
D. Snow cover
Answer: Option A
Solution (By JKSSB Mock Tests)
Permafrost forms in regions where the ground temperature remains below 0°C for at least two consecutive years, causing the soil and rock to remain frozen. It is common in Arctic and subarctic tundra climates.
Explanation:
The Ferrel cell and Polar cell are separated by the subpolar low-pressure belt, located around 60° latitude in both hemispheres, where warm and cold air masses converge.
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