Extratropical cyclones form between which two types of atmospheric cells?

a. Two Hadley cells
b. A Hadley cell and a Ferrel cell
c. A polar cell and a Hadley cell
d. A polar cell and a Ferrel cell


ANS: D
The boundary between a polar cell and a Ferrel cell creates extratropical cyclones. This occurs in each
hemisphere. This area is called a polar front and generates large storms during winter seasons when the
temperature and density differences are more pronounced. Information can be found in the section
Storms Are Variations in Large-Scale Atmospheric Circulation.

Environmental & Atmospheric Sciences

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