What is the name of the large-scale atmospheric circulation cell over the Arctic region?
A. Ferrel cell
B. Hadley cell
C. Walker cell
D. Polar cell
Answer: Option D
Solution (By JKSSB Mock Tests)
The Polar cell is the large-scale atmospheric circulation that occurs in the polar regions. Cold, dense air sinks at the poles and flows equatorward, rising again at about 60° latitude.
Explanation:
The greenhouse effect is the natural process by which certain gases in the atmosphere (greenhouse gases) trap outgoing longwave radiation, warming the Earth's surface and making it habitable.
Explanation:
Snow squalls are intense, short-lived snowstorms with strong winds, heavy snow, and low visibility, often associated with intense convection, convergence, and rapidly cooling air.
Explanation:
A positive IOD event is characterized by warmer than normal sea surface temperatures in the western Indian Ocean and cooler than normal in the east. This often leads to increased rainfall over East Africa and reduced rainfall over Indonesia and Australia.
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